Claude Opus 4.5 Nano on MMMU: score, rank and what it means
Claude Opus 4.5 Nano scores 69.2 on MMMU, placing it #322 of 600 models in the index. The benchmark average is 67.1 and the leader is GPT-5.2 Max at 86.9.
Score distribution
The chart shows the top 10 models on MMMU, with Claude Opus 4.5 Nano highlighted. Longer bars mean higher scores.
Top 10 leaderboard
| # | Model | Provider | Context | Input / 1M | Avg score |
|---|---|---|---|---|---|
| 1 | GPT-5.2 Max | OpenAI | 1000000 | $21.39 | 89.2 |
| 2 | GPT-5.1 Reasoning | OpenAI | 400000 | $20.27 | 88.3 |
| 3 | GPT-5.2 | OpenAI | 2000000 | $19.71 | 88.0 |
| 4 | Claude Sonnet 4.5 Reasoning | Anthropic | 400000 | $19.48 | 87.7 |
| 5 | GPT-5.1 Max | OpenAI | 2000000 | $20.50 | 87.9 |
| 6 | Grok 4 Pro | xAI | 1000000 | $19.00 | 85.4 |
| 7 | Claude Opus 4.5 Reasoning | Anthropic | 2000000 | $20.91 | 88.2 |
| 8 | Claude Sonnet 4.5 Pro | Anthropic | 1000000 | $18.73 | 86.7 |
| 9 | GPT-5.2 Pro | OpenAI | 2000000 | $21.32 | 89.6 |
| 10 | GPT-5.2 Vision | OpenAI | 1000000 | $19.03 | 87.4 |
What this score means
On MMMU, Claude Opus 4.5 Nano sits at #322 of 600. The leader, GPT-5.2 Max, scores 86.9, so the gap to the top is 17.7 points. The median model in this index scores 70.0, which puts Claude Opus 4.5 Nano below the midpoint.
Anthropic models average 77.3 on this benchmark. Claude Opus 4.5 Nano is 8.1 points below that provider line, so it is a weaker result than the average Anthropic model.
Among multimodal models, the average is 74.3. Claude Opus 4.5 Nano is 5.1 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 69.2 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 $9.38 per million input tokens, Claude Opus 4.5 Nano is above the median input price of $4.00 across the 600 models scored on MMMU. 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 |
|---|---|---|---|---|
| Nova Lite Max | Amazon | 200000 | $9.79 | 73.4 |
| Llama 3 Baseten Chat | Baseten | 200000 | $3.55 | 73.2 |
| DBRX | Databricks | 65536 | $3.29 | 73.3 |
| Reka Flash | Reka AI | 128000 | $9.95 | 74.1 |
| Claude Opus 4.5 Nano | Anthropic | 32768 | $9.38 | 73.3 |
| Llama 3 Modal Instruct | Modal | 128000 | $3.84 | 75.2 |
| DBRX Base | Databricks | 32768 | $2.63 | 69.1 |
Other benchmarks for Claude Opus 4.5 Nano
| Benchmark | Score | Rank | Percentile | Relative |
|---|---|---|---|---|
| MMLU-Pro | 76.1 | 300 | 50th | |
| GPQA Diamond | 69.4 | 281 | 53th | |
| SWE-bench Verified | 62.2 | 273 | 55th | |
| HumanEval | 75.5 | 334 | 44th | |
| MATH-500 | 77.2 | 272 | 55th | |
| AIME 2025 | 71.4 | 229 | 62th | |
| LiveCodeBench | 65.0 | 293 | 51th | |
| IFEval | 79.7 | 337 | 44th | |
| TruthfulQA | 78.1 | 252 | 58th | |
| HellaSwag | 82.1 | 344 | 43th | |
| Arena Elo | 1373.3 | 305 | 49th |
FAQ
What score does Claude Opus 4.5 Nano get on MMMU?
Claude Opus 4.5 Nano scores 69.2 on MMMU in this index. The benchmark average is 67.1 and the top score is 86.9.
How does Claude Opus 4.5 Nano rank on MMMU?
It ranks #322 of 600 models, in the 46th percentile. The leader is GPT-5.2 Max at 86.9.
Is Claude Opus 4.5 Nano good at MMMU?
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 MMMU score calculated?
MMMU is a multimodal 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 Opus 4.5 Nano cost?
Claude Opus 4.5 Nano costs $9.38 per million input tokens and $36.06 per million output tokens.