As of October 20, 2026, Anthropic Claude Haiku 5.5 ranks #19 of 213 models overall with 43.4 on the Artificial Analysis Intelligence Index. Its strongest category is math, where it ranks #14 of 116. Anthropic Claude Haiku 5.5 costs $0.10 per million input tokens and $0.50 per million output tokens. It was released on October 7, 2026.
Its output price ranks 85 of 349 priced models, counting from the cheapest.
Listed on OpenRouter October 7, 2026, 13 days before our data. Results so far on 63 of 190 public boards; this page updates every day as boards publish.
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
anthropic/claude-haiku-5.5 The tick on a coding bar is the median of every model measured on it. Outside coding, the place is this model's rank on that board. A board that never ran the model says so.
Measured in 4 of 6 categories. A place counts only the models measured on that board.
The index averages only the coding benchmarks that have a result; the others are skipped, never filled in. How it is weighted
Not measured on SWE-bench Lite, SWE-bench (full test set), SWE-bench Multimodal, SWE-bench Multilingual, AA Coding Index, LiveCodeBench (Vals AI), SWE-bench Verified (Vals AI), Terminal-Bench 2.1 (Vals AI), SkillsBench (Vals AI), LiveCodeBench (Artificial Analysis run), Terminal-Bench Hard (Artificial Analysis run), Terminal-Bench, DeepSWE, GSO-Bench, WeirdML, MirrorCode, Cybench, ALE-Bench, LMArena Text: coding, LMArena Text: software and IT, LMArena WebDev: from an image
Not measured on AA Agentic Index, Design Arena: agents building web apps, Design Arena: agents building full-stack apps, Design Arena: agents building mobile apps, Design Arena: agents building Android apps, Design Arena: agents building Godot games, Design Arena: agents building games, Design Arena: HTML slides, Design Arena: PowerPoint slides, Design Arena: spreadsheets, Time Horizon Index (Vals AI), CUA-bench (Vals AI), Robo-bench (Vals AI), τ²-Bench Telecom, METR time horizons, Remote Labor Index, GDPval, OSWorld 2.0, BALROG, DeepResearch Bench, PostTrainBench, TheAgentCompany, OSWorld, SpireClimb, LMArena Search
Not measured on GPQA Diamond, MMMU Pro (Vals AI), GPQA Diamond (Artificial Analysis run), SimpleBench, VPCT, BIG-Bench Hard, LMArena Text: hard prompts, LMArena Text: expert, LMArena Text: hard prompts in English, LMArena Vision: diagrams, LMArena Vision: homework
Not measured on AIME, MATH 500 (Vals AI), MGSM (Vals AI), AA Math Index, AIME 2025 (Artificial Analysis run), MATH level 5, GSM8K, LMArena Text: math, LMArena Text: mathematical work
Not measured on MMLU Pro, LegalBench (Vals AI), CaseLaw (Vals AI), CorpFin (Vals AI), TaxEval (Vals AI), MortgageTax (Vals AI), MedQA (Vals AI), MMLU Pro (Artificial Analysis run), MMLU, GeoBench, AI2 Reasoning Challenge, LMArena Text: science, LMArena Text: medicine and healthcare, LMArena Text: legal and government, LMArena Text: business and finance
Not measured on Design Arena: SVG, Design Arena: ASCII art
Not measured on Vals Multimodal Index, IFBench, Fiction.LiveBench, Creative writing (Lech Mazur), CL-bench, Surface Evolver Bench, ExploitBench, HellaSwag, WinoGrande, PIQA, CL-bench Life, LMArena Text, LMArena Text: instruction following, LMArena Text: creative writing, LMArena Vision, LMArena Text: English, LMArena Text: non-English, LMArena Text: Chinese, LMArena Text: German, LMArena Text: Japanese, LMArena Text: Korean, LMArena Text: French, LMArena Text: Spanish, LMArena Text: Russian, LMArena Text: Polish, LMArena Text: multi-turn, LMArena Text: longer queries, LMArena Text: writing and language, LMArena Text: entertainment and media, LMArena Vision: English, LMArena Vision: Chinese, LMArena Vision: reading text, LMArena Vision: humor, LMArena Vision: captioning, LMArena Vision: recognizing things, LMArena Vision: creative writing, LMArena Document
Not measured on Design Arena: images, Design Arena: graphic design, Design Arena: logos, LMArena Text to Image, LMArena Image Edit
Public boards shown as published (Vals AI, Artificial Analysis, Design Arena) and kept out of the coding index. Each links to its source on the benchmark page.
| Benchmark | Result | Index weight |
|---|---|---|
| Aider polyglotCoding | Not measured | 35% |
| SWE-bench VerifiedCoding | Not measured | 30% |
| SWE-bench LiteCoding | Not measured | Not in index |
| SWE-bench (full test set)Coding | Not measured | Not in index |
| SWE-bench MultimodalCoding | Not measured | Not in index |
| SWE-bench MultilingualCoding | Not measured | Not in index |
| LiveBench codingCoding | 91.4% | 20% |
| LMArena WebDevCoding | 1586 | 15% |
| Vals IndexGeneral | 58.7% | Not in index |
| GPQA DiamondReasoning | Not measured | Not in index |
| AIMEMath | Not measured | Not in index |
| MMLU ProKnowledge | Not measured | Not in index |
| AA Intelligence IndexIntelligence | 43.4 | Not in index |
| AA Coding IndexCoding | Not measured | Not in index |
| AA Agentic IndexAgentic work | Not measured | Not in index |
| Design Arena: websitesWeb design | 1263 | Not in index |
| Design Arena: UI componentsWeb design | 1295 | Not in index |
| Design Arena: game devWeb design | 1316 | Not in index |
| Design Arena: data vizWeb design | 1291 | Not in index |
| Design Arena: 3DWeb design | 1344 | Not in index |
| Design Arena: all code categoriesWeb design | 1279 | Not in index |
| Design Arena: SVGWeb design | Not measured | Not in index |
| Design Arena: ASCII artWeb design | Not measured | Not in index |
| Design Arena: agents building web appsAgentic work | Not measured | Not in index |
| Design Arena: agents building full-stack appsAgentic work | Not measured | Not in index |
| Design Arena: agents building mobile appsAgentic work | Not measured | Not in index |
| Design Arena: agents building Android appsAgentic work | Not measured | Not in index |
| Design Arena: agents building Godot gamesAgentic work | Not measured | Not in index |
| Design Arena: agents building gamesAgentic work | Not measured | Not in index |
| Design Arena: HTML slidesAgentic work | Not measured | Not in index |
| Design Arena: PowerPoint slidesAgentic work | Not measured | Not in index |
| Design Arena: spreadsheetsAgentic work | Not measured | Not in index |
| Design Arena: imagesImage generation | Not measured | Not in index |
| Design Arena: graphic designImage generation | Not measured | Not in index |
| Design Arena: logosImage generation | Not measured | Not in index |
| LiveBench reasoningReasoning | 82.4% | Not in index |
| LiveBench data analysisGeneral | 53.1% | Not in index |
| LiveBench researchAgentic work | 81.9% | Not in index |
| LiveBench browserAgentic work | 80.0% | Not in index |
| LiveBench long agenticAgentic work | 57.6% | Not in index |
| LiveBench designWeb design | 83.1% | Not in index |
| LiveCodeBench (Vals AI)Coding | Not measured | Not in index |
| SWE-bench Verified (Vals AI)Coding | Not measured | Not in index |
| Terminal-Bench 4 (Vals AI)Coding | 36.4% | Not in index |
| Vibe Code Bench (Vals AI)Coding | 90.4% | Not in index |
| Code migration (Vals AI)Coding | 44.6% | Not in index |
| ProgramBench (Vals AI)Coding | 2.5% | Not in index |
| SREBench (Vals AI)Agentic work | 5.7% | Not in index |
| IOI (Vals AI)Coding | 47.3% | Not in index |
| Terminal-Bench 2.1 (Vals AI)Coding | Not measured | Not in index |
| SWE-bench Multimodal (Vals AI)Coding | 44.0% | Not in index |
| Vibe Code Bench 1-100 (Vals AI)Coding | 20.4% | Not in index |
| SkillsBench (Vals AI)Coding | Not measured | Not in index |
| CyberBench (Vals AI)Coding | 75.5% | Not in index |
| Finance Agent (Vals AI)Agentic work | 54.1% | Not in index |
| Tax Agent Bench (Vals AI)Agentic work | 31.9% | Not in index |
| Legal Research Bench (Vals AI)Agentic work | 43.3% | Not in index |
| Harvey's Legal Agent Benchmark (Vals AI)Agentic work | 4.2% | Not in index |
| Excel Modeling Benchmark (Vals AI)Agentic work | 59.0% | Not in index |
| BioMysteryBench (Vals AI)Agentic work | 70.4% | Not in index |
| Terminal-Bench-Science (Vals AI)Agentic work | 10.0% | Not in index |
| Vals Science IndexAgentic work | 38.5% | Not in index |
| Time Horizon Index (Vals AI)Agentic work | Not measured | Not in index |
| CUA-bench (Vals AI)Agentic work | Not measured | Not in index |
| Robo-bench (Vals AI)Agentic work | Not measured | Not in index |
| Public Benefits Bench (Vals AI)General | 63.2% | Not in index |
| MysteryMechanism (Vals AI)Reasoning | 35.1% | Not in index |
| MMMU Pro (Vals AI)Reasoning | Not measured | Not in index |
| MATH 500 (Vals AI)Math | Not measured | Not in index |
| MGSM (Vals AI)Math | Not measured | Not in index |
| SAGE (Vals AI)General | 45.8% | Not in index |
| LegalBench (Vals AI)Knowledge | Not measured | Not in index |
| CaseLaw (Vals AI)Knowledge | Not measured | Not in index |
| CorpFin (Vals AI)Knowledge | Not measured | Not in index |
| TaxEval (Vals AI)Knowledge | Not measured | Not in index |
| MortgageTax (Vals AI)Knowledge | Not measured | Not in index |
| MedQA (Vals AI)Knowledge | Not measured | Not in index |
| MedCode (Vals AI)Knowledge | 51.5% | Not in index |
| MedScribe (Vals AI)General | 89.5% | Not in index |
| Vals Multimodal IndexGeneral | Not measured | Not in index |
| AA Math IndexMath | Not measured | Not in index |
| GPQA Diamond (Artificial Analysis run)Reasoning | Not measured | Not in index |
| Humanity's Last Exam (Artificial Analysis run)Reasoning | 44.4% | Not in index |
| MMLU Pro (Artificial Analysis run)Knowledge | Not measured | Not in index |
| LiveCodeBench (Artificial Analysis run)Coding | Not measured | Not in index |
| SciCodeCoding | 55.0% | Not in index |
| Terminal-Bench Hard (Artificial Analysis run)Coding | Not measured | Not in index |
| IFBenchGeneral | Not measured | Not in index |
| Long context reasoning (AA-LCR)General | 82.7% | Not in index |
| τ²-Bench TelecomAgentic work | Not measured | Not in index |
| AIME 2025 (Artificial Analysis run)Math | Not measured | Not in index |
| Terminal-BenchCoding | Not measured | Not in index |
| DeepSWECoding | Not measured | Not in index |
| FrontierCodeCoding | 46.4% | Not in index |
| FrontierSWECoding | 43.8% | Not in index |
| GSO-BenchCoding | Not measured | Not in index |
| WeirdMLCoding | Not measured | Not in index |
| MirrorCodeCoding | Not measured | Not in index |
| APEX-AgentsAgentic work | 56.1% | Not in index |
| METR time horizonsAgentic work | Not measured | Not in index |
| Remote Labor IndexAgentic work | Not measured | Not in index |
| GDPvalAgentic work | Not measured | Not in index |
| OSWorld 2.0Agentic work | Not measured | Not in index |
| BALROGAgentic work | Not measured | Not in index |
| DeepResearch BenchAgentic work | Not measured | Not in index |
| PostTrainBenchAgentic work | Not measured | Not in index |
| GPQA Diamond (Epoch AI run)Reasoning | 89.6% | Not in index |
| ARC-AGIReasoning | 89.0% | Not in index |
| ARC-AGI-2Reasoning | 61.3% | Not in index |
| Humanity's Last ExamReasoning | 30.1% | Not in index |
| SimpleBenchReasoning | Not measured | Not in index |
| Chess puzzlesReasoning | 55.0% | Not in index |
| Mystery game puzzlesReasoning | 30.0% | Not in index |
| EBR-benchReasoning | 43.8% | Not in index |
| OTIS Mock AIMEMath | 98.9% | Not in index |
| FrontierMath, tiers 1 to 3Math | 75.1% | Not in index |
| FrontierMath, tier 4Math | 46.3% | Not in index |
| ProofBenchMath | 89.0% | Not in index |
| MATH level 5Math | Not measured | Not in index |
| GSM8KMath | Not measured | Not in index |
| SimpleQA VerifiedKnowledge | 23.8% | Not in index |
| MMLUKnowledge | Not measured | Not in index |
| GeoBenchKnowledge | Not measured | Not in index |
| DTBenchGeneral | 95.0% | Not in index |
| LMCAGeneral | 51.1% | Not in index |
| Fiction.LiveBenchGeneral | Not measured | Not in index |
| Creative writing (Lech Mazur)General | Not measured | Not in index |
| CL-benchGeneral | Not measured | Not in index |
| Surface Evolver BenchGeneral | Not measured | Not in index |
| Furniture assemblyGeneral | 47.5% | Not in index |
| ExploitBenchGeneral | Not measured | Not in index |
| CybenchCoding | Not measured | Not in index |
| TheAgentCompanyAgentic work | Not measured | Not in index |
| OSWorldAgentic work | Not measured | Not in index |
| SpireClimbAgentic work | Not measured | Not in index |
| VPCTReasoning | Not measured | Not in index |
| BIG-Bench HardReasoning | Not measured | Not in index |
| AI2 Reasoning ChallengeKnowledge | Not measured | Not in index |
| HellaSwagGeneral | Not measured | Not in index |
| WinoGrandeGeneral | Not measured | Not in index |
| PIQAGeneral | Not measured | Not in index |
| CL-bench LifeGeneral | Not measured | Not in index |
| ALE-BenchCoding | Not measured | Not in index |
| Vending-Bench 2Agentic work | $3,602 | Not in index |
| Epoch Capabilities IndexIntelligence | 159.0 | Not in index |
| LMArena TextGeneral | Not measured | Not in index |
| LMArena Text: codingCoding | Not measured | Not in index |
| LMArena Text: hard promptsReasoning | Not measured | Not in index |
| LMArena Text: mathMath | Not measured | Not in index |
| LMArena Text: instruction followingGeneral | Not measured | Not in index |
| LMArena Text: creative writingGeneral | Not measured | Not in index |
| LMArena VisionGeneral | Not measured | Not in index |
| LMArena Text: EnglishGeneral | Not measured | Not in index |
| LMArena Text: non-EnglishGeneral | Not measured | Not in index |
| LMArena Text: ChineseGeneral | Not measured | Not in index |
| LMArena Text: GermanGeneral | Not measured | Not in index |
| LMArena Text: JapaneseGeneral | Not measured | Not in index |
| LMArena Text: KoreanGeneral | Not measured | Not in index |
| LMArena Text: FrenchGeneral | Not measured | Not in index |
| LMArena Text: SpanishGeneral | Not measured | Not in index |
| LMArena Text: RussianGeneral | Not measured | Not in index |
| LMArena Text: PolishGeneral | Not measured | Not in index |
| LMArena Text: multi-turnGeneral | Not measured | Not in index |
| LMArena Text: longer queriesGeneral | Not measured | Not in index |
| LMArena Text: expertReasoning | Not measured | Not in index |
| LMArena Text: hard prompts in EnglishReasoning | Not measured | Not in index |
| LMArena Text: software and ITCoding | Not measured | Not in index |
| LMArena Text: mathematical workMath | Not measured | Not in index |
| LMArena Text: scienceKnowledge | Not measured | Not in index |
| LMArena Text: medicine and healthcareKnowledge | Not measured | Not in index |
| LMArena Text: legal and governmentKnowledge | Not measured | Not in index |
| LMArena Text: business and financeKnowledge | Not measured | Not in index |
| LMArena Text: writing and languageGeneral | Not measured | Not in index |
| LMArena Text: entertainment and mediaGeneral | Not measured | Not in index |
| LMArena WebDev: ReactCoding | 1605 | Not in index |
| LMArena WebDev: HTMLCoding | 1569 | Not in index |
| LMArena WebDev: from an imageCoding | Not measured | Not in index |
| LMArena Vision: EnglishGeneral | Not measured | Not in index |
| LMArena Vision: ChineseGeneral | Not measured | Not in index |
| LMArena Vision: reading textGeneral | Not measured | Not in index |
| LMArena Vision: diagramsReasoning | Not measured | Not in index |
| LMArena Vision: homeworkReasoning | Not measured | Not in index |
| LMArena Vision: humorGeneral | Not measured | Not in index |
| LMArena Vision: captioningGeneral | Not measured | Not in index |
| LMArena Vision: recognizing thingsGeneral | Not measured | Not in index |
| LMArena Vision: creative writingGeneral | Not measured | Not in index |
| LMArena SearchAgentic work | Not measured | Not in index |
| LMArena DocumentGeneral | Not measured | Not in index |
| LMArena Text to ImageImage generation | Not measured | Not in index |
| LMArena Image EditImage generation | Not measured | Not in index |
A list price says what a token costs. The cost per solved task says what a working answer costs, which is the number that decides.
Neither board that publishes what a SWE-bench Verified attempt costs, Vals AI and swebench.com, has run this model. We leave the number out rather than estimate it.
LiveBench, on its own coding tasks, publishes what one task cost this model: $0.874, at a score of 91.4%. LiveBench counts that as $0.956 per successful task. Different tasks from SWE-bench, so it is not our number and does not enter its ranking. LiveBench coding
Beside a result, many boards publish what the run cost, how long it took, the tokens it spent or the votes behind a rating. Each figure as its board printed it, one board per row.
| Board | Result | What the run cost | Also published |
|---|---|---|---|
| LiveBench coding | 91.4% | $0.8738 per task | Output tokens per task 138,052 |
| Vals Index | 58.7% | $3.17 per test | Duration, as printed 49m 48s |
| LiveBench reasoning | 82.4% | $0.0206 per task | Output tokens per task 40,789 |
| LiveBench data analysis | 53.1% | $0.0315 per task | Output tokens per task 61,936 |
| LiveBench research | 81.9% | $1.9399 per task | Output tokens per task 235,636 |
| LiveBench browser | 80.0% | $0.46 per task | Output tokens per task 42,653 |
| LiveBench long agentic | 57.6% | $10.3619 per task | Output tokens per task 1.0M |
| LiveBench design | 83.1% | $0.6631 per task | Output tokens per task 171,437 |
| Terminal-Bench 4 (Vals AI) | 36.4% | $3.12 per test | Duration, as printed 51m 56s |
| Vibe Code Bench (Vals AI) | 90.4% | $6.07 per test | Duration, as printed 34m 36s |
| Code migration (Vals AI) | 44.6% | $6.23 per test | Duration, as printed 1h 23m |
| ProgramBench (Vals AI) | 2.5% | $6.83 per test | Duration, as printed 1h 13m |
| SREBench (Vals AI) | 5.7% | $3.14 per test | Duration, as printed 57m 56s |
|---|---|---|---|
| IOI (Vals AI) | 47.3% | $0.83 per test | Duration, as printed 12m 34s |
| SWE-bench Multimodal (Vals AI) | 44.0% | $0.70 per test | Duration, as printed 16m 16s |
| Vibe Code Bench 1-100 (Vals AI) | 20.4% | $8.30 per test | Duration, as printed 4h 06m |
| CyberBench (Vals AI) | 75.5% | $1.25 per test | Duration, as printed 32m 39s |
| Finance Agent (Vals AI) | 54.1% | $1.64 per test | Duration, as printed 30m 49s |
| Tax Agent Bench (Vals AI) | 31.9% | $1.16 per test | Duration, as printed 49m 34s |
| Legal Research Bench (Vals AI) | 43.3% | $1.63 per test | Duration, as printed 1h 22m |
| Harvey's Legal Agent Benchmark (Vals AI) | 4.2% | $4.26 per test | Duration, as printed 43m 41s |
| Excel Modeling Benchmark (Vals AI) | 59.0% | $1.15 per test | Duration, as printed 18m 03s |
| BioMysteryBench (Vals AI) | 70.4% | $0.51 per test | Duration, as printed 12m 32s |
| Terminal-Bench-Science (Vals AI) | 10.0% | $4.52 per test | Duration, as printed 1h 34m |
| Vals Science Index | 38.5% | $1.86 per test | Duration, as printed 39m 58s |
| Public Benefits Bench (Vals AI) | 63.2% | $0.53 per test | Nothing else |
| MysteryMechanism (Vals AI) | 35.1% | $0.54 per test | Duration, as printed 13m 25s |
| FrontierSWE | 43.8% | $20.55 average cost per task | Best of 5 runs 52.8% · Hours per task 12.4 h |
| ProofBench | 89.0% | $0.1739 per test | Time per proof 6m 58s |
| LMArena WebDev | 1586 Elo | Not published | Votes 3,514 · Interval (±) ±10.9 |
| Design Arena: websites | 1263 Elo | Not published | Battles 6,853 |
| Design Arena: UI components | 1295 Elo | Not published | Battles 278 |
| Design Arena: game dev | 1316 Elo | Not published | Battles 1,562 |
| Design Arena: data viz | 1291 Elo | Not published | Battles 224 |
| Design Arena: 3D | 1344 Elo | Not published | Battles 758 |
| Design Arena: all code categories | 1279 Elo | Not published | Battles 9,118 |
| SAGE (Vals AI) | 45.8% | Not published | Latency, as printed 2m 23s |
| MedCode (Vals AI) | 51.5% | Not published | Latency, as printed 3m 46s |
| MedScribe (Vals AI) | 89.5% | Not published | Latency, as printed 5m 23s |
| APEX-Agents | 56.1% | Not published | Mean score 68.3% |
| LMArena WebDev: React | 1605 Elo | Not published | Votes 2,203 · Interval (±) ±13.7 |
| LMArena WebDev: HTML | 1569 Elo | Not published | Votes 449 · Interval (±) ±29.7 |