Codestral 8B on GPQA Diamond: score, rank and what it means
Codestral 8B scores 53.3 on GPQA Diamond, placing it #488 of 600 models in the index. The benchmark average is 65.6 and the leader is GPT-5.2 Reasoning at 87.0.
Score distribution
The chart shows the top 10 models on GPQA Diamond, with Codestral 8B highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Reasoning | OpenAI | 1000000 | $20.98 | 87.5 |
| 2 | GPT-5.1 Max | OpenAI | 2000000 | $20.50 | 87.9 |
| 3 | Claude Opus 4.5 Pro | Anthropic | 200000 | $20.98 | 89.1 |
| 4 | GPT-5.1 Reasoning | OpenAI | 400000 | $20.27 | 88.3 |
| 5 | Claude Sonnet 4.5 Reasoning | Anthropic | 400000 | $19.48 | 87.7 |
| 6 | GPT-5.2 | OpenAI | 2000000 | $19.71 | 88.0 |
| 7 | o4 Turbo | OpenAI | 2000000 | $19.34 | 86.6 |
| 8 | Claude Opus 4.5 Max | Anthropic | 1000000 | $20.90 | 87.8 |
| 9 | Grok 4 Turbo | xAI | 1000000 | $19.21 | 86.7 |
| 10 | Claude Sonnet 4.5 Max | Anthropic | 1000000 | $19.90 | 87.2 |
What this score means
On GPQA Diamond, Codestral 8B sits at #488 of 600. The leader, GPT-5.2 Reasoning, scores 87.0, so the gap to the top is 33.7 points. The median model in this index scores 68.8, which puts Codestral 8B below the midpoint.
Mistral AI models average 63.3 on this benchmark. Codestral 8B is 10.0 points below that provider line, so it is a weaker result than the average Mistral AI model.
Among small open-weight models, the average is 49.3. Codestral 8B is 4.0 points above that group. This is the more useful comparison if you are shortlisting within the same tier rather than across the whole index.
Read a 53.3 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 $1.18 per million input tokens, Codestral 8B is below the median input price of $4.00 across the 600 models scored on GPQA Diamond. 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 |
|---|---|---|---|---|
| Llama 3 Anyscale 8B | Anyscale | 32768 | $0.97 | 57.3 |
| Llama 3 Lambda 8B | Lambda | 4096 | $1.03 | 57.2 |
| DeepSeek-V3.2 1.5B | DeepSeek | 4096 | $1.02 | 56.9 |
| Llama 4 Maverick 1.5B | Meta AI | 8192 | $0.93 | 55.2 |
| Codestral 8B | Mistral AI | 4096 | $1.18 | 59.0 |
| Phi-4 8B | Microsoft | 32768 | $0.96 | 54.9 |
| Magistral 8B | Mistral AI | 4096 | $1.33 | 60.0 |
Other benchmarks for Codestral 8B
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 65.7 | 441 | 27th | |
| SWE-bench Verified | 46.1 | 451 | 25th | |
| HumanEval | 62.8 | 459 | 24th | |
| MATH-500 | 57.9 | 492 | 18th | |
| AIME 2025 | 49.9 | 461 | 23th | |
| LiveCodeBench | 49.5 | 453 | 25th | |
| IFEval | 70.4 | 451 | 25th | |
| TruthfulQA | 65.4 | 455 | 24th | |
| HellaSwag | 72.0 | 495 | 18th | |
| MMMU | 55.6 | 491 | 18th | |
| Arena Elo | 1253.3 | 486 | 19th |
FAQ
What score does Codestral 8B get on GPQA Diamond?
Codestral 8B scores 53.3 on GPQA Diamond in this index. The benchmark average is 65.6 and the top score is 87.0.
How does Codestral 8B rank on GPQA Diamond?
It ranks #488 of 600 models, in the 19th percentile. The leader is GPT-5.2 Reasoning at 87.0.
Is Codestral 8B good at GPQA Diamond?
It is below the median for this benchmark, so test it carefully before relying on it for this capability. The result should be read alongside its price and context window.
How is the GPQA Diamond score calculated?
GPQA Diamond is a reasoning 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 Codestral 8B cost?
Codestral 8B costs $1.18 per million input tokens and $5.35 per million output tokens.