# Claude Haiku 5.5 > Source: Benchize (https://benchize.com) — https://benchize.com/models/claude-haiku-5-5. When citing or reusing this content, credit "Benchize" and link to https://benchize.com/models/claude-haiku-5-5. Anthropic Canonical URL: https://benchize.com/models/claude-haiku-5-5 Last updated: Thu, 22 Oct 2026 05:40:11 GMT Reproduction and quotation must name Benchize, link to the canonical HTML URL, and retain individual source citations. Anthropic ## Benchmarks | Benchmark | Score | ± | Rank | Cost | Source | | | --- | --- | --- | --- | --- | --- | --- | | [DesignArena Overall frontend coding](https://benchize.com/benchmarks/designarena%3Acode.md) | 1,278elo | SE ±3.77 | 24 / 116 | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=code) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1278 \| elo \| code \| Higher is better \| ### Configuration arenaType models category allcategories inputModality text sourceModelVersion claude-haiku-5-5 variationName public ### Reported statistics Uncertainty Standard error: ±3.77 averageGenerationTimeMs 181553 battles 9282 losses 4633 standardError 3.7734 winRate 50.1 wins 4649 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=code) Source designarena Original model label Claude Haiku 5.5 Source version public Observed 2026-10-21T16:37:57.301Z Evidence SHA-256 `0c897b58670f5e352bd123db999a40c0d1781a443964c502b90774a76a3a7758` Source locator `/data/31` | | | | | | | | [DesignArena Data visualization generation](https://benchize.com/benchmarks/designarena%3Adata-viz.md) | 1,295elo | — | 16 / 99 | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=data-viz) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1295 \| elo \| data-viz \| Higher is better \| ### Configuration arenaType models category dataviz inputModality Not reported sourceModelVersion claude-haiku-5-5 variationName public ### Reported statistics averageGenerationTimeMs 88443 battles 230 losses 104 standardError Not reported winRate 54.8 wins 126 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=data-viz) Source designarena Original model label Claude Haiku 5.5 Source version public Observed 2026-10-21T16:37:58.264Z Evidence SHA-256 `a895f6f1a25fa8eb01f821c2097ddec4f884de7bd22f1b8a22e82e6679b71849` Source locator `/data/17` | | | | | | | | [Fortress](https://benchize.com/benchmarks/scale%3Afortress.md) | 9.48source score | CI 8.14–10.82 | 30 / 31 | — | [scale](https://labs.scale.com/leaderboard/fortress) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 9.48 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Claude Haiku 5.5 sourceModelVersion claude-haiku-5-5 thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 8.14–10.82 contaminationWarning ORS score: 9.00 rank 3 reportedConfidenceHalfWidth 1.34 ### Source [Original source](https://labs.scale.com/leaderboard/fortress) Source scale Original model label Claude Haiku 5.5 Observed 2026-10-22T03:30:12.378Z Evidence SHA-256 `2c005102a7346206e5d31d9249d525620bef39f6d514668ed48398e710616b0f` Source locator `/rows/2` | | | | | | | | [DesignArena Browser game generation](https://benchize.com/benchmarks/designarena%3Agame-dev.md) | 1,314elo | — | 17 / 117 | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=game-dev) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1314 \| elo \| game-dev \| Higher is better \| ### Configuration arenaType models category gamedev inputModality Not reported sourceModelVersion claude-haiku-5-5 variationName public ### Reported statistics averageGenerationTimeMs 255072 battles 1624 losses 751 standardError Not reported winRate 53.8 wins 873 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=game-dev) Source designarena Original model label Claude Haiku 5.5 Source version public Observed 2026-10-21T16:38:01.100Z Evidence SHA-256 `53db6a89112ce8cdf644568c666d4b8309aece764cfcedb291ffd52ae3934e30` Source locator `/data/20` | | | | | | | | [DesignArena UI component generation](https://benchize.com/benchmarks/designarena%3Aui-components.md) | 1,291elo | — | 24 / 112 | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=ui-components) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1291 \| elo \| ui-components \| Higher is better \| ### Configuration arenaType models category uicomponent inputModality Not reported sourceModelVersion claude-haiku-5-5 variationName public ### Reported statistics averageGenerationTimeMs 85319 battles 291 losses 139 standardError Not reported winRate 52.2 wins 152 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=ui-components) Source designarena Original model label Claude Haiku 5.5 Source version public Observed 2026-10-21T16:37:57.993Z Evidence SHA-256 `46482ec1b4012638eace65493daea4750e2088098018fd9d5fc46126fc1f8557` Source locator `/data/30` | | | | | | | | [Humanity's Last Exam (Text Only)](https://benchize.com/benchmarks/scale%3Ahumanitys_last_exam_text_only.md) | 30.35source score | CI 28.38–32.32 | 3 / 25 | — | [scale](https://labs.scale.com/leaderboard/humanitys_last_exam_text_only) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 30.35 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Claude Haiku 5.5 sourceModelVersion claude-haiku-5-5 thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 28.38–32.32 contaminationWarning Not reported rank 12 reportedConfidenceHalfWidth 1.97 ### Source [Original source](https://labs.scale.com/leaderboard/humanitys_last_exam_text_only) Source scale Original model label Claude Haiku 5.5 Observed 2026-10-22T03:30:09.372Z Evidence SHA-256 `16bd91dbd41a73afd31ff09fba3b9b08e9e3e2cfe682c50cc3b2bf8397610af6` Source locator `/rows/11` | | | | | | | | [Humanity’s Last Exam (HLE)](https://benchize.com/benchmarks/hle.md) | 30.12source score | CI 28.29–31.95 | 4 / 17 | — | [scale](https://labs.scale.com/leaderboard/humanitys_last_exam) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 30.12 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Claude Haiku 5.5 sourceModelVersion claude-haiku-5-5 thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 28.29–31.95 contaminationWarning Not reported rank 13 reportedConfidenceHalfWidth 1.83 ### Source [Original source](https://labs.scale.com/leaderboard/humanitys_last_exam) Source scale Original model label Claude Haiku 5.5 Observed 2026-10-22T03:30:08.991Z Evidence SHA-256 `2e7bc7983b3fe2fab5270a4dc00f51a40b87f5318a686fbae4291beda672f604` Source locator `/rows/12` | | | | | | | | [DesignArena Website generation](https://benchize.com/benchmarks/designarena%3Awebsite.md) | 1,263elo | — | 33 / 123 | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=website) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1263 \| elo \| website \| Higher is better \| ### Configuration arenaType models category website inputModality text sourceModelVersion claude-haiku-5-5 variationName public ### Reported statistics averageGenerationTimeMs 172094 battles 6937 losses 3573 standardError Not reported winRate 48.5 wins 3364 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=website) Source designarena Original model label Claude Haiku 5.5 Source version public Observed 2026-10-21T16:37:57.757Z Evidence SHA-256 `51873e97776a3c5ae706b24cc2c60384793dd18398df970e213a8e7c276d8ac0` Source locator `/data/49` | | | | | | | | [DesignArena Image to HTML](https://benchize.com/benchmarks/designarena%3Aimage-to-html.md) | 1,173elo | — | 29 / 35 | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=image-to-html) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1173 \| elo \| image-to-html \| Higher is better \| ### Configuration arenaType models category website inputModality image sourceModelVersion claude-haiku-5-5 variationName public ### Reported statistics averageGenerationTimeMs 124936 battles 892 losses 482 standardError Not reported winRate 46 wins 410 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=image-to-html) Source designarena Original model label Claude Haiku 5.5 Source version public Observed 2026-10-21T16:37:58.959Z Evidence SHA-256 `94f97ebbdd53a8c56f138b620e59b3a9b35c66c3954dcaaa1b2ed4c71518b404` Source locator `/data/35` | | | | | | | | [FrontierSWE v2 abs](https://benchize.com/benchmarks/frontierswe%3Av2%3Aabs.md) | 43.77source score | — | 7 / 15 | — | [frontierswe](https://www.frontierswe.com/) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `overall` \| 43.76868294117648 \| source_score \| mean \| Higher is better \| \| `overall_best` \| 52.753011764705896 \| source_score \| best \| Higher is better \| \| `overall_worst` \| 34.486967647058805 \| source_score \| worst \| Higher is better \| \| `implementation` \| 54.324169999999995 \| source_score \| mean \| Higher is better \| \| `performance` \| 28.722723333333334 \| source_score \| mean \| Higher is better \| \| `research` \| 37.46422285714286 \| source_score \| mean \| Higher is better \| ### Configuration aggregation mean harness proximus normalization abs Reasoning effort unknown ### Source [Original source](https://www.frontierswe.com/) Source frontierswe Original model label Claude Haiku 5.5 Observed 2026-10-21T16:31:27.602Z Evidence SHA-256 `818e027068cf61ff1aadd8281b6e49e9c6795221015210601b5e34d0d223e5b5` Source locator `/rows/6` | | | | | | | | [MultiChallenge](https://benchize.com/benchmarks/scale%3Amultichallenge.md) | 67.67source score | CI 62.33–73.01 | 6 / 13 | — | [scale](https://labs.scale.com/leaderboard/multichallenge) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `score` \| 67.67 \| source_score \| reported \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Claude Haiku 5.5 sourceModelVersion claude-haiku-5-5 thinkingEnabled Not reported ### Reported statistics Uncertainty Confidence interval: 62.33–73.01 contaminationWarning Not reported rank 8 reportedConfidenceHalfWidth 5.34 ### Source [Original source](https://labs.scale.com/leaderboard/multichallenge) Source scale Original model label Claude Haiku 5.5 Observed 2026-10-22T03:30:12.126Z Evidence SHA-256 `5e401bee10cc8735eaa9a7a23f7777c24d4e4862c3c2ffea4b945be7d5851096` Source locator `/rows/7` | | | | | | | | [DesignArena 3D design generation](https://benchize.com/benchmarks/designarena%3A3d-design.md) | 1,343elo | — | 13 / 110 | — | [designarena · public](https://www.designarena.ai/api/leaderboard#board=3d-design) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `elo` \| 1343 \| elo \| 3d-design \| Higher is better \| ### Configuration arenaType models category 3d inputModality Not reported sourceModelVersion claude-haiku-5-5 variationName public ### Reported statistics averageGenerationTimeMs 156316 battles 762 losses 318 standardError Not reported winRate 58.3 wins 444 ### Source [Original source](https://www.designarena.ai/api/leaderboard#board=3d-design) Source designarena Original model label Claude Haiku 5.5 Source version public Observed 2026-10-21T16:37:58.515Z Evidence SHA-256 `bcc0267f7bc7e9ec112306b3a35413cf78bbccbfaa838356232d5d5ed0b83d0f` Source locator `/data/14` | | | | | | | | [Vending-Bench 2](https://benchize.com/benchmarks/vendingbench%3Av2.md) | — | — | — | $3,602.46 | [vendingbench](https://andonlabs.com/_app/immutable/chunks/Cjn0_qj9.js) | | | ### Original source values \| Metric \| Value \| Unit \| Scope \| Direction \| \| --- \| --- \| --- \| --- \| --- \| \| `final_balance` \| 3602.4633333333345 \| USD \| one_simulated_year \| Higher is better \| \| `geometric_mean_balance` \| 3204.676138323894 \| USD \| positive_final_balances \| Higher is better \| ### Configuration Reasoning effort unknown Model configuration Claude Haiku 5.5 thinkingEnabled Not reported ### Reported statistics confidenceHalfWidth95 1353.6637146947098 positiveBalanceRuns 6 runCount 6 standardDeviation 1691.7272368992174 standardError 690.6447523952602 ### Source [Original source](https://andonlabs.com/_app/immutable/chunks/Cjn0_qj9.js) Source vendingbench Original model label Claude Haiku 5.5 Observed 2026-10-21T16:36:40.592Z Evidence SHA-256 `1a0b043147050298c405bcb743d73e425d532464202231cd18c27f836fa5f223` Source locator `/rows/7` | | | | | | | --- Cite as: Claude Haiku 5.5 — Benchize, https://benchize.com/models/claude-haiku-5-5 (retrieved 2026-10-22)