Claude Opus 4.5 Nano on MATH-500: score, rank and what it means
Claude Opus 4.5 Nano scores 77.2 on MATH-500, placing it #272 of 600 models in the index. The benchmark average is 72.5 and the leader is GPT-5.2 Max at 96.7.
Score distribution
The chart shows the top 10 models on MATH-500, 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-5.1 Pro | OpenAI | 200000 | $19.77 | 87.8 |
| 4 | o4 Reasoning | OpenAI | 1000000 | $19.69 | 87.5 |
| 5 | Grok 4 Max | xAI | 2000000 | $19.70 | 86.6 |
| 6 | Grok 4 Reasoning | xAI | 2000000 | $19.67 | 87.8 |
| 7 | Claude Opus 4.5 Max | Anthropic | 1000000 | $20.90 | 87.8 |
| 8 | Claude Opus 4.5 | Anthropic | 400000 | $19.42 | 87.7 |
| 9 | Gemini 3 Pro Reasoning | Google DeepMind | 200000 | $19.69 | 87.5 |
| 10 | Claude Opus 4.5 Turbo | Anthropic | 2000000 | $19.57 | 85.7 |
What this score means
On MATH-500, Claude Opus 4.5 Nano sits at #272 of 600. The leader, GPT-5.2 Max, scores 96.7, so the gap to the top is 19.5 points. The median model in this index scores 76.0, which puts Claude Opus 4.5 Nano above the midpoint.
Anthropic models average 85.3 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 81.3. Claude Opus 4.5 Nano is 4.1 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 77.2 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 MATH-500. 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 |
|---|---|---|---|---|
| Firefunction Max | Fireworks AI | 32768 | $9.12 | 73.2 |
| Llama 3 Baseten Instruct | Baseten | 200000 | $3.91 | 76.2 |
| Llama 3.1 Cerebras Chat | Cerebras | 32768 | $4.07 | 76.0 |
| Llama 3.3 Groq Base | Groq | 16384 | $3.24 | 73.5 |
| Claude Opus 4.5 Nano | Anthropic | 32768 | $9.38 | 73.3 |
| Llama 3 Baseten Chat | Baseten | 200000 | $3.55 | 73.2 |
| Mistral Small 3 | Mistral AI | 32768 | $3.90 | 75.3 |
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 | |
| 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 | |
| MMMU | 69.2 | 322 | 46th | |
| Arena Elo | 1373.3 | 305 | 49th |
FAQ
What score does Claude Opus 4.5 Nano get on MATH-500?
Claude Opus 4.5 Nano scores 77.2 on MATH-500 in this index. The benchmark average is 72.5 and the top score is 96.7.
How does Claude Opus 4.5 Nano rank on MATH-500?
It ranks #272 of 600 models, in the 55th percentile. The leader is GPT-5.2 Max at 96.7.
Is Claude Opus 4.5 Nano good at MATH-500?
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 MATH-500 score calculated?
MATH-500 is a mathematics 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.