Claude Sonnet 4.5 Turbo on HumanEval: score, rank and what it means
Claude Sonnet 4.5 Turbo scores 90.4 on HumanEval, placing it #39 of 600 models in the index. The benchmark average is 74.0 and the leader is GPT-5.2 Pro at 96.8.
Score distribution
The chart shows the top 10 models on HumanEval, with Claude Sonnet 4.5 Turbo highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Pro | OpenAI | 2000000 | $21.32 | 89.6 |
| 2 | Gemini 3 Pro Pro | Google DeepMind | 200000 | $19.80 | 87.3 |
| 3 | o4 Max | OpenAI | 2000000 | $19.51 | 86.2 |
| 4 | Grok 4 Reasoning | xAI | 2000000 | $19.67 | 87.8 |
| 5 | Claude Opus 4.5 | Anthropic | 400000 | $19.42 | 87.7 |
| 6 | GPT-5.2 Max | OpenAI | 1000000 | $21.39 | 89.2 |
| 7 | Claude Opus 4.5 Pro | Anthropic | 200000 | $20.98 | 89.1 |
| 8 | Grok 4 Max | xAI | 2000000 | $19.70 | 86.6 |
| 9 | GPT-5.2 Turbo | OpenAI | 1000000 | $20.73 | 87.4 |
| 10 | GPT-5.1 Reasoning | OpenAI | 400000 | $20.27 | 88.3 |
What this score means
On HumanEval, Claude Sonnet 4.5 Turbo sits at #39 of 600. The leader, GPT-5.2 Pro, scores 96.8, so the gap to the top is 6.4 points. The median model in this index scores 77.4, which puts Claude Sonnet 4.5 Turbo above the midpoint.
Anthropic models average 86.0 on this benchmark. Claude Sonnet 4.5 Turbo is 4.4 points above that provider line, so it is a stronger result than the average Anthropic model.
Among frontier models, the average is 90.8. Claude Sonnet 4.5 Turbo is 0.4 points below that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.
Read a 90.4 as a relative signal, not an absolute guarantee. Benchmark scores depend on prompt format, evaluation harness and contamination controls. Use this page to narrow the shortlist, then test the model on your own data.
Price context
At $18.37 per million input tokens, Claude Sonnet 4.5 Turbo is above the median input price of $4.00 across the 600 models scored on HumanEval. The models immediately around it in the ranking are shown below so you can compare score and price together.
| Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|
| Claude 3.7 Sonnet Max | Anthropic | 128000 | $16.88 | 83.7 |
| GPT-5.1 | OpenAI | 2000000 | $19.01 | 86.0 |
| Gemini 3 Flash Turbo | Google DeepMind | 200000 | $17.07 | 84.1 |
| o3 Pro | OpenAI | 400000 | $17.89 | 85.8 |
| Claude Sonnet 4.5 Turbo | Anthropic | 1000000 | $18.37 | 85.9 |
| Claude Sonnet 4.5 Reasoning | Anthropic | 400000 | $19.48 | 87.7 |
| Gemini 3 Pro Turbo | Google DeepMind | 400000 | $19.62 | 86.4 |
Other benchmarks for Claude Sonnet 4.5 Turbo
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 87.2 | 31 | 95th | |
| GPQA Diamond | 83.7 | 15 | 98th | |
| SWE-bench Verified | 75.2 | 38 | 94th | |
| MATH-500 | 88.0 | 66 | 89th | |
| AIME 2025 | 87.8 | 16 | 97th | |
| LiveCodeBench | 78.9 | 54 | 91th | |
| IFEval | 91.4 | 45 | 93th | |
| TruthfulQA | 87.7 | 24 | 96th | |
| HellaSwag | 93.9 | 12 | 98th | |
| MMMU | 81.1 | 42 | 93th | |
| Arena Elo | 1461.7 | 49 | 92th |
FAQ
What score does Claude Sonnet 4.5 Turbo get on HumanEval?
Claude Sonnet 4.5 Turbo scores 90.4 on HumanEval in this index. The benchmark average is 74.0 and the top score is 96.8.
How does Claude Sonnet 4.5 Turbo rank on HumanEval?
It ranks #39 of 600 models, in the 94th percentile. The leader is GPT-5.2 Pro at 96.8.
Is Claude Sonnet 4.5 Turbo good at HumanEval?
Yes, relative to the index: it is above the median and inside the top half of scores. The result should be read alongside its price and context window.
How is the HumanEval score calculated?
HumanEval is a coding benchmark. Scores in this index are modelled estimates on a 0–100 scale (or Elo for Arena), derived from capability tier and benchmark difficulty. They are not official leaderboard results.
What does Claude Sonnet 4.5 Turbo cost?
Claude Sonnet 4.5 Turbo costs $18.37 per million input tokens and $81.65 per million output tokens.