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Arknights: Endfield Pity Calculator

Calculate your pull probability on Arknights: Endfield Chartered Headhunting (limited character), Arsenal Issue (weapon), and Basic Headhunting banners. Dual-counter pity: 80 hard pity that carries between banners, and a 120-pull featured guarantee that resets each banner. No 50/50 failsafe.

Arknights: Endfield

Arknights: Endfield Pity Calculator

Chartered Headhunting pull probability · 120-pull guarantee (no 50/50 failsafe) · Arsenal Issue 80-pull guarantee.

Banner type

Your state

pulls

Pity progress

pulls

The 120-pull guarantee does NOT carry between banners — resets to 0 when a new banner starts.

Featured guarantee progress

Resets when banner ends — does not carry

What's your budget?
pulls

Chance of the featured 5★

Chance of the featured 5★: 0.0% · Basically impossible

Enter your current pity and how many pulls you have to calculate your odds.

Expected pulls

~ 108

Any 5★ chance

0.0%

Worst case

120

Next pull rate

0.8%

Probability curve

Chance of featured 5★ · Pulls: 0–160

  • Your state

Why the 120 guarantee matters

At pull 120 of this banner, your next 6★ IS the featured operator — no 50/50 coin flip.

The 120-pull counter does NOT carry between banners — progress resets to 0 each new banner.

Unlike Genshin or Honkai: Star Rail, losing the 50/50 does NOT guarantee your next 6★ is featured.

Worst case: 120 pulls = 60,000 Oroberyl. The 'golden rule' of the Endfield community.

Target copies (0–6)
Copies Chance at budget Expected Worst case Currency
P0 0.0% 108 120 54,000
P1 0.0% 216 240 108,000
P2 0.0% 323 360 161,500
P3 0.0% 431 480 215,500
P4 0.0% 539 600 269,500
P5 0.0% 647 720 323,500

Additionally, Endfield awards a free copy of the featured operator every 240 pulls on the same banner (not modeled here — see FAQ).

Independent community tool — not affiliated with HoYoverse, Kuro Games, Hotta Studio, or HyperGryph; game names and terms belong to their respective owners.

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Arknights: Endfield pity calculator. 120-pull guarantee probability with no 50/50 failsafe.

An Endfield pity calculator shows your odds of pulling the featured limited operator from your current pity and Oroberyl budget. Endfield has no 50/50 failsafe — the 120-pull guarantee (60,000 Oroberyl) is the only safety net, and it does NOT carry between banners.

What is the Arknights: Endfield pity system?

The Arknights: Endfield pity system is HyperGryph's gacha mechanic on the Chartered Headhunting banner, built around two independent counters and — crucially — no 50/50 failsafe. Every 6-star operator has a flat 0.8% base rate from pull 1 through pull 65. Soft pity triggers at pull 66, where the per-pull rate jumps tenfold to 5.8% and then climbs by +5% each pull until hard pity at pull 80 guarantees any 6-star. These values are documented across the Game8 pity guide, the endfield.gg gacha guide, and the pcgamesn Endfield pity article.
Endfield's single biggest differentiator is the absence of a 50/50 failsafe. Unlike Genshin Impact, Honkai: Star Rail, Zenless Zone Zero, and Wuthering Waves — where losing the 50/50 guarantees your next featured unit — Endfield gives you no such mercy. Every 6-star you pull before pull 120 is an independent 50/50. You could in theory lose the split five times in a row and still not be "guaranteed." The only safety net is the 120-pull absolute cap: on pull 120 of a limited banner the game forces the featured limited operator, overriding the 50/50. HyperGryph itself labels this mechanic the "Spark."
The two pity counters behave differently and this is where most players trip up. The 80-pull counter (hard pity for any 6-star) fully carries between limited character banners — a player who ends banner A at 40/80 starts banner B at 40/80. The 120-pull featured guarantee does NOT carry. Ending banner A at 100/120 without pulling the featured operator resets you to 0/120 on banner B, erasing 100 pulls of Spark progress. This dual-counter asymmetry is unique to Endfield among major anime gacha titles.
The Arsenal Issue weapon banner uses a similar two-cap model: 4% base rate, soft pity at pull 36, hard pity at pull 40 (any 6-star weapon), and an absolute featured-weapon guarantee at pull 80. Featured split is 25/75, also with no failsafe. Arsenal Issue pulls are x10-only. Neither the 40 nor the 80 counter carries between weapon banners. Basic Headhunting (the standard banner) uses the same 0.8% / 66 / 80 rates with no featured concept.

How to calculate your Endfield pity odds

This free online Endfield pity calculator resolves your probability analytically in four inputs. The same workflow maps to the manual math if you want to cross-check against community references such as arknights.win's gacha guide or the Icy Veins Endfield character banner guide.
1. Select the banner type. Choose Chartered Headhunting (limited character), Arsenal Issue (limited weapon), or Basic Headhunting (standard). Each banner has its own base rate, soft-pity pull, hard-pity pull, and — for character and weapon — its own featured guarantee cap.
2. Enter your current 6-star pity. This is the number of pulls since your last 6-star on that banner type. The character-banner counter carries between limited banners, so enter whatever the in-game counter shows — new banners do NOT reset this counter. The weapon counter resets on every new weapon banner.
3. Enter your featured-guarantee progress. On Chartered Headhunting this is the 120-Spark counter (0 to 119) — the total pulls you've made on this specific banner. On Arsenal Issue it's the 80-pull featured-weapon counter (0 to 79). Both reset when a new banner starts. The helper text warns you explicitly that 120 and 80 progress do not carry.
4. Enter your pull budget. Type the number of pulls directly, or enter Oroberyl (500 per pull on character/standard, 198-equivalent on weapon) plus any Chartered HH Permits, Basic HH Permits, or Arsenal Tickets you have. On Arsenal Issue, round to the nearest 10 — x10-only pulls are hard-enforced by the game.
The calculator returns five numbers: probability of pulling the featured limited operator within your budget, probability of any 6-star, expected pulls to your first featured, worst-case pulls (bounded by 120 on character, 80 on weapon), and a pull-by-pull cumulative probability curve. A verdict chip turns the raw percentage into plain English — "guaranteed", "very likely", "coin flip", "save more" — so you can decide whether to pull now or wait.

Endfield per-pull 6-star probability formula

P6⋆(n)={r0if 1≤n<sr0+k⋅(n−s+1)if s≤n<h1if n=hP_{\text{6}\star}(n) = \begin{cases} r_0 & \text{if } 1 \le n < s \\ r_0 + k \cdot (n - s + 1) & \text{if } s \le n < h \\ 1 & \text{if } n = h \end{cases}
  • nn = Pull index since your last 6-star (1-indexed).
  • r0r_0 = Base rate per pull: 0.008 on Chartered/Basic Headhunting, 0.04 on Arsenal Issue.
  • ss = Soft-pity start: pull 66 on Chartered/Basic, pull 36 on Arsenal Issue.
  • hh = Hard pity: pull 80 on Chartered/Basic, pull 40 on Arsenal Issue.
  • kk = Soft-pity ramp coefficient: +0.05 per pull on Chartered/Basic (so P(66)=5.8%, P(67)=10.8%, ..., P(80)=100%); ~+0.12 per pull on Arsenal Issue.
The per-pull rate is flat at the base rate until soft pity, then climbs linearly by +5 percentage points per pull on the character banner. Your odds jump from 0.8% at pull 65 to 5.8% at pull 66, hit 25.8% at pull 70, 50.8% at pull 75, and reach 100% at pull 80 — verified against arknights.win's pull-rate table and Game8's Endfield pity article.
The 120-pull featured guarantee adds a second layer on top of the per-pull rate. Let f be the count of pulls on the current banner (the "Spark" counter). When a 6-star pulls, the game checks if f = 120; if yes, it forces the featured operator regardless of the 50/50. If f < 120, an independent 50/50 fires with pfeatured = 0.5. There is no failsafe — losing the 50/50 does NOT flag your next 6-star as guaranteed. Only the 120 cap can force a featured win.
The engine runs an analytic dynamic program over (pity, featuredPity) states. Because Endfield has no lost-last-50/50 flag to persist, the state is two-dimensional rather than three-dimensional — simpler than Genshin, HSR, or Wuthering Waves. Worst case to obtain the featured operator from (0, 0) is exactly 120 pulls (60,000 Oroberyl). With carried-over 80-pity from an earlier banner, worst case is still 120 pulls from the current banner start, but fewer expected pulls because early soft pity lets the 50/50 fire earlier. The Arsenal Issue banner uses the same two-cap structure with the caps at 40 and 80.

Endfield pity calculator examples

Fresh banner, 30 pulls saved — still far from guarantee

You start a new Chartered Headhunting banner at currentPity = 0 and featuredPity = 0 with 30 pulls (15,000 Oroberyl) saved. Because 30 pulls is well short of soft pity (66), your per-pull rate stays flat at 0.8%. Probability of any 6-star within 30 pulls is about 21.5% (the compounded chance of NOT pulling a 6-star at 0.8% for 30 consecutive pulls is roughly 78.5%). Probability of the featured operator is half that — about 10.8% — because every 6-star is an independent 50/50 with no failsafe. Verdict: save more. A 30-pull commit is a coin flip even for any 6-star, and a long shot for the featured.

Mid-banner, featuredPity = 50, 60 more pulls planned

You're mid-Chartered banner at featuredPity = 50 and currentPity = 30 (you carried 10 pity from the previous banner and pulled 20 more). You have 60 more pulls (30,000 Oroberyl) available, which will push featuredPity to 110 and currentPity past 80 — triggering hard pity. At hard pity (pull 80 overall), any 6-star is forced; the 50/50 fires because featuredPity = 80 < 120. Probability of the featured operator over those 60 pulls is roughly 68% (≈50% from the 80-pity hard-cap 50/50, plus soft-pity probability of an earlier 6-star with its own 50/50). Verdict: very likely, but a 32% chance of missing still means this is not a guaranteed commit. If you need certainty, plan for the full 120.

Late pity, featuredPity = 100 — calculate exact cost to secure

You're deep into Chartered Headhunting at featuredPity = 100 and currentPity = 0 (you just pulled a 6-star and lost the 50/50). You need to know the exact Oroberyl cost to guarantee the featured. The math: 120 − 100 = 20 more pulls max to trigger the Spark. Within those 20 pulls, your 6-star odds stay at 0.8% until pull 66 on the current-pity counter — but since currentPity is 0, you won't hit soft pity before pull 66. So in 20 pulls you have roughly 14.9% chance of an early 6-star (and a ~7.5% chance it's the featured). The remaining ~85% of scenarios route you through the 120-guarantee. Worst case: 20 × 500 = 10,000 Oroberyl, or 20 Chartered HH Permits. This is the single most certain spend in the calc — featuredPity ≥ 100 means you are within one banner cycle of the guarantee no matter what.

Arsenal Issue weapon banner — guaranteeing a featured weapon

You open Arsenal Issue at pity 0 with 80 pulls (≈15,840 Oroberyl-equivalent in Arsenal Tickets) and want the featured weapon. Hard pity at pull 40 gives any 6-star weapon, and the 25/75 split means only 25% of the time is it the featured one. With no failsafe, the 40-cap by itself gives you about 27% featured probability (25% from the cap-triggered split, plus a few percent from early soft-pity rolls). But the 80-pull absolute cap forces the featured on pull 80 regardless. Probability of the featured weapon over 80 pulls: 100%. Worst-case Arsenal Ticket cost to guarantee the featured weapon from pity 0: 80 × 198 ≈ 15,840 Oroberyl-equivalent.

Planning for P1 via 240-pull dupe guarantee — 120,000 Oroberyl total

You already own the featured operator at Potential 0 (P0) and want P1 on the same banner. The 120 Spark is spent and does not reapply on this banner, but Endfield awards a free dupe token every 240 cumulative pulls on the same banner, documented by endfield.wiki.gg's Headhunting page and dexerto's banner wiki. After spending 120 pulls to hit P0, another 120 pulls on the same banner (240 total) grants you P1 automatically. Worst-case total Oroberyl to reach P1 in a single banner: 240 × 500 = 120,000 Oroberyl. This mechanic is not interactive in the calc, but the math is: budget 120K Oroberyl for P1, 240K for P2, and so on up to P5.

Cross-game comparison — same 90-pull budget, five gacha titles

What does a 90-pull budget actually buy you on each major anime gacha character banner, starting fresh at pity 0 with any coin flip still active? The table below makes the comparison concrete.
GameBannerBase rateSoft pityHard pityFeatured capP(featured @ 90 pulls)
Arknights: EndfieldChartered Headhunting0.8%6680120 absolute~55%
Genshin ImpactCharacter Event0.6%7490180 via failsafe~62%
Honkai: Star RailCharacter Event0.6%7590180 via failsafe~56%
Zenless Zone ZeroExclusive0.6%7590180 via failsafe~57%
Neverness to EvernessLimited Character1.88%709090 (no 50/50)100%
Endfield is the ONLY game in this set with no 50/50 failsafe. At 90 pulls on Endfield you've cleared hard pity (80) with 10 pulls to spare, but you're still short of the 120 Spark. If you lose the 50/50 at pull 80, those extra 10 pulls give about 8% more shot at another 6-star — and that one is ALSO a raw 50/50. The 120 worst case is lenient compared to Genshin's 180, but the path between pull 81 and pull 119 is the worst gacha dead zone in the genre. Plan for 120 or don't pull.

Tips for planning your Endfield pulls

  • Always save the full 120 pulls (60,000 Oroberyl) before committing to a limited banner. Endfield has no 50/50 failsafe, so anything less than 120 pulls is a genuine gamble on the 50/50 — and losing the split does NOT flag your next 6-star as guaranteed. The Game8 pity guide and the endfield.gg gacha breakdown both emphasize the 120-pull target as the only safe commit threshold.
  • Don't let the 120 Spark expire. The 120-pull featured guarantee resets to 0 when a new limited banner starts. A player sitting at 100/120 who doesn't finish the current banner loses all 100 pulls of Spark progress. If you're ≥60/120 on a banner you don't love, consider pushing through to guarantee the featured anyway — the alternative is starting the next banner at 0/120 with identical odds to any other new player.
  • The 80-pity DOES carry, so time your commits. If you end a previous Chartered Headhunting banner at 40/80, you start the next one at 40/80. Using carried pity strategically means you hit soft pity earlier (at pull 26 rather than pull 66) and can guarantee a 6-star within 40 pulls rather than 80. Combined with the 120 Spark, a carried 40 pity cuts worst-case expected pulls from 120 to about 95.
  • Budget 120,000 Oroberyl for P1 via the 240-pull dupe guarantee. Endfield awards a free dupe of the featured operator every 240 cumulative pulls on the same banner (documented by endfield.wiki.gg and dexerto.com). If you want P1 in a single banner, plan for 240 pulls = 120,000 Oroberyl. P2 = 480 pulls = 240,000 Oroberyl. P3 = 720 pulls = 360,000 Oroberyl. P5 (max) = 1,200 pulls = 600,000 Oroberyl. These are worst-case ceilings — you'll almost always spend less thanks to 50/50 wins along the way.
  • Weapon banner (Arsenal Issue) has an 80-cap but no failsafe on the 25/75. Plan for the full 80 pulls (≈15,840 Oroberyl-equivalent) if you need the featured weapon. Only 25% of 6-star weapons are the featured one; the 80-pull absolute cap is the only guarantee. Arsenal Issue pulls are x10-only — singles are not allowed. And the 80 counter does NOT carry between weapon banners, so plan banner-by-banner.
  • Oroberyl and Origeometry are not the same currency. Oroberyl is earned from gameplay and quests (500 per pull). Origeometry is the premium currency you buy with real money and converts to Oroberyl at a 1:75 ratio. For pull planning, always think in Oroberyl or pulls — Origeometry is a top-up step, not a pull unit. Never multiply Origeometry by anything; convert it to Oroberyl first via the 1:75 ratio.
  • Your verdict chip is a planning signal, not a promise. Anything below 50% is a save-more signal. 50%–80% is a coin flip; commit only if you have backup saved for the next banner. 80%+ is a confident pull. 100% is a mathematical guarantee — Endfield hits 100% only when your featuredPity ≥ 120 OR the sum of your currentPity + pullsAvailable ≥ 120 with soft pity fully cleared.
  • If you also play other gacha, the same math engine drives our Genshin Impact pity calculator, Honkai: Star Rail warp calculator, Zenless Zone Zero signal calculator, Wuthering Waves convene calculator, and Neverness to Everness pity calculator. Cross-game budget planning is worth doing — Endfield's 120 cap is cheaper than Genshin's 180, but its no-failsafe rule means the expected spend lands higher than you'd expect from the cap alone.

Frequently asked questions about Endfield pity

Does Arknights: Endfield have a 50/50 failsafe like Genshin?
No. Every 6-star pulled before pull 120 is an independent 50/50. Losing the 50/50 does NOT guarantee your next 6-star is the featured operator — a mechanic confirmed unanimously by Game8, the pcgamesn Endfield pity guide, endfield.gg, and the Talos Hub community tracker. The 120-pull absolute cap is the only featured guarantee. This is the single biggest difference from Genshin Impact, Honkai: Star Rail, Zenless Zone Zero, and Wuthering Waves.

Does the 120-pull guarantee carry between banners?
No. The 120 counter (the "Spark") resets to 0 when a new limited banner starts. The 80-pull hard pity for any 6-star DOES carry. This dual behavior is verified by the endfield.gg gacha guide and the arknights.win gacha page. Practical consequence: if you're at 100/120 on a banner you don't want to finish, those 100 pulls of Spark progress are lost.

How much Oroberyl do I need to guarantee a featured operator?
60,000 Oroberyl (120 pulls × 500 Oroberyl each) guarantees the featured limited operator, even if you lose every 50/50 along the way. This is the worst-case ceiling and the number most Endfield community guides — including mumuplayer and GameWith — cite as the target savings baseline.

When does soft pity start in Endfield?
Pull 66 on Chartered Headhunting and Basic Headhunting (character/standard banners). The first increased-rate pull is pull 66 at 5.8% — base 0.8% + 5 percentage points. Rates climb linearly by +5% per pull (10.8% at pull 67, 25.8% at pull 70, 50.8% at pull 75) until hard pity at pull 80 forces a 6-star with 100% probability.

What is hard pity in Endfield?
80 pulls on Chartered Headhunting and Basic Headhunting; 40 pulls on Arsenal Issue. Reaching hard pity forces a 6-star on that pull. Because Endfield has no 50/50 failsafe, hitting hard pity guarantees an any-6-star but not necessarily the featured — a distinction the Talos Hub tracker FAQ makes explicitly.

What happens at pull 240 on the same banner?
The game awards a free copy of the featured limited operator via the dupe-token system. This applies once per 240 pulls on the same banner, in addition to the 120-pull guarantee, and is documented by endfield.wiki.gg and dexerto's banner wiki. Plan around 240 pulls for P1 in a single banner, 480 for P2, up to 1,200 for P5 (max Potential).

How does the weapon banner (Arsenal Issue) work?
Base rate 4% for any 6-star weapon, soft pity at pull 36, hard pity at pull 40. Featured weapon is a 25/75 split — only 25% of 6-star weapons are the rate-up one. Pull 80 is the absolute guarantee for the featured weapon — no failsafe on the 25/75 losses. Arsenal Issue pulls are x10-only and pity does NOT carry between weapon banners.

Does pity carry over between Endfield banners?
The 80-pull hard pity DOES carry between limited character banners. The 120-pull featured guarantee ("Spark") does NOT carry. The Arsenal Issue weapon banner has its own counters and neither carries. The Basic Headhunting standard banner keeps its own separate 80-pull counter.

Is this Endfield pity calculator free?
Yes. The calculator runs entirely in your browser, requires no login, and nothing you enter is stored or sent to a server. Your pity counters, banner choice, and Oroberyl budget stay local — we do not track pull data.

How accurate are the Endfield probabilities shown?
The math engine is an analytic dynamic program over (pity, featuredPity) states — no Monte Carlo simulation. Rates come from HyperGryph's in-game rate disclosure and community cross-validation (Game8, arknights.win, endfield.gg, Icy Veins). Values verified 2026-04-20 per Version 1.2.

Is Endfield's pity better than Genshin or HSR?
It depends on your goal. For a single P0 featured copy, Endfield's 120-pull cap is cheaper than Genshin/HSR's 180-pull worst case. But Endfield's no-failsafe rule pushes the expected spend above what the raw cap suggests — losing the 50/50 forces you all the way to 120 with no rebate, while Genshin/HSR's failsafe guarantees the next 5★ is the rate-up. For dupes, Endfield's 240-pull repeating bonus is unique and makes P5 cheaper than equivalent Constellation/Eidolon paths in Genshin/HSR. Verdict: better for whales hunting dupes, middling for single-copy hunters.

Endfield gacha glossary

Oroberyl

The primary in-game currency used for pulls in Arknights: Endfield. 500 Oroberyl equals 1 pull on Chartered Headhunting or Basic Headhunting. Earned through gameplay, events, and Origeometry conversion.

Origeometry

The premium currency bought with real money. Converts to Oroberyl at a 1:75 ratio. Not used directly for pulls — always converted to Oroberyl first.

Chartered Headhunting

The limited character banner in Endfield. Features a rate-up 6-star operator with a 50/50 split and a 120-pull absolute guarantee (the "Spark").

Arsenal Issue

The limited weapon banner. Uses Arsenal Tickets, allows only 10-pulls, has a 25/75 featured split, soft pity at 36, hard pity at 40, and an 80-pull absolute guarantee for the featured weapon.

Basic Headhunting

The standard banner, using Basic HH Permits. Same 0.8% / 66 / 80 rates as Chartered Headhunting but with no featured concept — every 6-star is from the standard pool.

Operator

Endfield's term for a playable character. Pulled on Chartered or Basic Headhunting banners. 6-star operators are the rarest tier.

Potential (P0–P5)

Endfield's dupe-copy system. P0 is the first copy; P5 is max (six total copies). Dupes improve damage, utility, and Talent effects. Each Potential step costs one extra copy, obtainable via pulls or the 240-pull dupe token.

Spark

Community name for Endfield's 120-pull featured guarantee. On pull 120 of a Chartered Headhunting banner, the featured operator is forced regardless of the 50/50. Resets to 0 when a new banner starts.

Pity

The counter of pulls since your last 6-star on a given banner type. Resets to 0 after any 6-star drops. The 80-pull counter carries between limited character banners; weapon counter does not.

Soft pity

The ramp phase that starts at pull 66 on character banners (pull 36 on Arsenal Issue). Per-pull rate jumps to 5.8% and climbs by +5 percentage points per pull.

Hard pity

The pull at which a 6-star is 100% guaranteed: pull 80 on Chartered Headhunting and Basic Headhunting, pull 40 on Arsenal Issue.

50/50

The coin flip that decides whether a pulled 6-star is the featured operator or a standard-pool copy. Unlike Genshin, HSR, ZZZ, WuWa, and NTE, Endfield has NO failsafe — losing the 50/50 does not flag the next 6-star as guaranteed.

Featured 6-star

The rate-up operator or weapon on a limited banner. On Chartered Headhunting, only the 120-pull Spark guarantees this; on Arsenal Issue, only the 80-pull absolute cap guarantees it.

Sources & References

  1. Arknights: Endfield official site (Hypergryph / Gryphline) — the in-game rate disclosure behind the base rates used here: 0.8% for a 6★ character with hard pity at 80, and 4% for a 6★ weapon with hard pity at 40. Endfield's banner is unusual and this is where you can check it: there is NO 50/50 failsafe, and instead a hard featured guarantee at 120 pulls on characters and 80 on weapons, which resets on a featured pull and does not carry over to the next banner.
  2. Game8 — Arknights: Endfield guide wiki: the community record for the soft-pity ramp Hypergryph does not publish, starting around pull 66 on characters and 36 on weapons. It is datamined and observed, so this page presents it as a model of the game rather than as stated odds.
  3. GameWith — Arknights: Endfield wiki: the second independent reading used to cross-check the banner parameters and the currency cost per pull (500 for a character pull, 198 for a weapon pull, drawn in batches of ten). Where the two community wikis disagree, this page keeps the value both report.
  4. Arknights: Endfield on Wikipedia — release history and version timeline, used to date the banner parameters. Gacha odds are a per-version fact, so a pity model without a version stamp is worth little.

Content verified by the Smart Calculators Team