Claude Haiku 4.5: pricing, context window and benchmarks
Claude Haiku 4.5 is a multimodal model from Anthropic. It offers a 1,000,000-token context window, costs $13.86 per million input tokens and $74.67 per million output tokens, and averages 79.4 across the index's benchmark suite.
Pricing
Claude Haiku 4.5 costs $13.86 per million input tokens and $74.67 per million output tokens. A blended 3:1 input-to-output mix works out to about $29.06 per million tokens. Cached input is listed at $1.15 per million tokens.
| Item | Price | Notes |
|---|---|---|
| Input | $13.86 | per 1M tokens |
| Output | $74.67 | per 1M tokens |
| Cached input | $1.15 | per 1M tokens |
| Blended 3:1 | $29.06 | estimate per 1M tokens |
| 1M in + 1M out | $88.53 | estimate |
Benchmarks
Scores below are modelled estimates on a 0–100 scale. Use them to compare relative position, not as official vendor results.
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 84.1 | 79 | 87th | |
| GPQA Diamond | 74.1 | 164 | 73th | |
| SWE-bench Verified | 69.2 | 127 | 79th | |
| HumanEval | 84.7 | 122 | 80th | |
| MATH-500 | 81.4 | 178 | 70th | |
| AIME 2025 | 76.5 | 134 | 78th | |
| LiveCodeBench | 71.6 | 155 | 74th | |
| IFEval | 85.2 | 181 | 70th | |
| TruthfulQA | 79.6 | 197 | 67th | |
| HellaSwag | 89.6 | 97 | 84th | |
| MMMU | 77.6 | 103 | 83th | |
| Arena Elo | 1421.8 | 139 | 77th |
What Claude Haiku 4.5 is good for
Claude Haiku 4.5 is tuned toward coding work. It is a reasonable candidate for code generation, review, debugging and repository-scale tasks, especially when paired with a retrieval layer. At $13.86 per million input tokens, it sits in the mid-range of the index, and the 1,000,000-token context window is enough for large files and multi-file diffs.
Strengths
- Large 1,000,000-token context window for long documents and agent traces.
- Accepts more than text, including image input where the provider supports it.
- Coding benchmarks are a relative strength within its tier.
Trade-offs
- Proprietary licence: you cannot download the weights or self-host the model.
- Premium input pricing at $13.86 per million tokens.
How it compares
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| Qwen3-Coder | Alibaba Cloud | 200000 | $4.94 | 79.5 |
| Claude Haiku 4.5 | Anthropic | 1000000 | $13.86 | 79.4 |
| Doubao 1.5 Pro Turbo | ByteDance | 128000 | $13.81 | 79.4 |
| MiniMax-M2 Instruct | MiniMax | 128000 | $5.11 | 79.4 |
| Nova Pro | Amazon | 32768 | $12.75 | 79.4 |
| Nova Pro Reasoning | Amazon | 200000 | $13.48 | 79.4 |
FAQ
How much does Claude Haiku 4.5 cost?
Claude Haiku 4.5 is listed at $13.86 per million input tokens and $74.67 per million output tokens. Cached input is $1.15 per million tokens. A blended 3:1 input-to-output mix is about $29.06 per million tokens.
What is the context window of Claude Haiku 4.5?
Claude Haiku 4.5 has a context window of 1,000,000 tokens and can emit up to 128,000 output tokens per request in this index.
Is Claude Haiku 4.5 open weights?
No. Claude Haiku 4.5 is a proprietary model with a proprietary licence, so you cannot download the weights.
How does Claude Haiku 4.5 score on benchmarks?
Claude Haiku 4.5 averages 79.4 across the scored benchmarks in this index, ranking #135 of 600 models. Its strongest relative result is Arena Elo at 1421.8.
What is Claude Haiku 4.5 best for?
Claude Haiku 4.5 is tuned toward coding work. It is a reasonable candidate for code generation, review, debugging and repository-scale tasks, especially when paired with a retrieval layer. At $13.86 per million input tokens, it sits in the mid-range of the index, and the 1,000,000-token context window is enough for large files and multi-file diffs.