Model profile
Claude Haiku 4.5 Thinking
Evidence coverage
2 of 323 tracked benchmarks are published. 1 is verified and 1 provisional. 2 of 8 categories are measured.
- Published / tracked
- 2 / 323
- Verified
- 1
- Provisional
- 1
- Categories with evidence
- 2 / 8
Evidence by category
- Agentic0 benchmarksNot measured
- Coding1 benchmarkVerified
- Reasoning0 benchmarksNot measured
- Knowledge0 benchmarksNot measured
- Math0 benchmarksNot measured
- Multilingual0 benchmarksNot measured
- Multimodal1 benchmarkReported
- Inst. Following0 benchmarksNot measured
BenchLM is tracking Claude Haiku 4.5 Thinking, but this profile is currently excluded from the public leaderboard because it still lacks enough non-generated benchmark coverage to rank safely. Only non-generated public benchmark rows appear below.
Claude Haiku 4.5 Thinking is a proprietary model with a 200K token context window. It uses explicit chain-of-thought reasoning, which typically improves performance on math and complex reasoning tasks at the cost of higher latency and token usage.
Claude Haiku 4.5 Thinking sits inside the Claude Haiku 4.5 family alongside Claude Haiku 4.5. This profile currently has 2 of 323 tracked benchmarks. BenchLM only exposes non-generated benchmark rows publicly, so missing categories stay blank until a sourced evaluation is available.
Peer position
Exact provisional scores and ranks for the closest listed peers. A score can appear before a model clears the evidence threshold for a rank, so equal scores can have different rank states.
Range 77.44–83.93
- Claude Mythos 5AnthropicCompare#183.93Claude Mythos 5 is #1 with a score of 83.93.
- Claude Fable 5AnthropicCompare#283.68Claude Fable 5 is #2 with a score of 83.68.
- GPT-5.6 SolOpenAICompare#381.96GPT-5.6 Sol is #3 with a score of 81.96.
- Kimi K3Moonshot AICompare#480.96Kimi K3 is #4 with a score of 80.96.
- Claude Opus 4.8AnthropicCompare#578.34Claude Opus 4.8 is #5 with a score of 78.34.
- Muse Spark 1.1MetaCompare#677.44Muse Spark 1.1 is #6 with a score of 77.44.
- Claude Haiku 4.5 ThinkingCurrent modelAnthropicUnrankedNot measuredClaude Haiku 4.5 Thinking is Unranked with a score of Not measured.
Category percentile
More
Relative position among models eligible for each sourced category. A higher percentile means a stronger position within that category's ranked cohort; 100 is highest.
Category evidence
Scores and ranks appear only where this model has published benchmark evidence. Categories without displayable source records remain not measured.
| Category | Score | Rank | Percentile | Weight | Benchmarks | Evidence |
|---|---|---|---|---|---|---|
| AgenticWeight 22%0 benchmarksNot measured | Not measured | Not ranked | Not available | 22% | 0 benchmarks | Not measured |
| CodingWeight 20%1 benchmarkVerified | Score pending | Not ranked | Not available | 20% | 1 benchmark | Verified |
| ReasoningWeight 17%0 benchmarksNot measured | Not measured | Not ranked | Not available | 17% | 0 benchmarks | Not measured |
| KnowledgeWeight 12%0 benchmarksNot measured | Not measured | Not ranked | Not available | 12% | 0 benchmarks | Not measured |
| MathWeight 5%0 benchmarksNot measured | Not measured | Not ranked | Not available | 5% | 0 benchmarks | Not measured |
| MultilingualWeight 7%0 benchmarksNot measured | Not measured | Not ranked | Not available | 7% | 0 benchmarks | Not measured |
| MultimodalWeight 12%1 benchmarkReported | Score pending | Not ranked | Not available | 12% | 1 benchmark | Reported |
| Inst. FollowingWeight 5%0 benchmarksNot measured | Not measured | Not ranked | Not available | 5% | 0 benchmarks | Not measured |
Benchmark Details
Rows below have a displayable published verification record. Each source link and provenance note remains in the page HTML while its category is closed. Source-unverified manual rows and generated rows stay hidden.
Coding1 benchmark
Vibe Code Bench v1.1
Multimodal1 benchmark
Design Arena Website Elo
Frequently Asked Questions
How does Claude Haiku 4.5 Thinking perform overall in AI benchmarks?
Claude Haiku 4.5 Thinking has 2 published benchmark scores on BenchLM, but it does not yet have enough non-generated coverage to receive a global overall rank.
Is Claude Haiku 4.5 Thinking good for coding and programming?
Claude Haiku 4.5 Thinking has visible benchmark coverage in coding and programming, but BenchLM does not currently assign it a global category rank there.
Is Claude Haiku 4.5 Thinking good for multimodal and grounded tasks?
Claude Haiku 4.5 Thinking has visible benchmark coverage in multimodal and grounded tasks, but BenchLM does not currently assign it a global category rank there.
Which sibling models are related to Claude Haiku 4.5 Thinking?
Claude Haiku 4.5 Thinking belongs to the Claude Haiku 4.5 family. Related variants on BenchLM include Claude Haiku 4.5.
Does Claude Haiku 4.5 Thinking have full benchmark coverage on BenchLM?
Not yet. Claude Haiku 4.5 Thinking currently has 2 published benchmark scores out of the 323 benchmarks BenchLM tracks. BenchLM only exposes non-generated public benchmark rows, so missing categories stay blank until a sourced evaluation is available.
What is the context window size of Claude Haiku 4.5 Thinking?
Claude Haiku 4.5 Thinking has a published context window of 200K, which determines how much text it can process in a single interaction.
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