Compare models
Comparing 2models. Drop the URL into a doc — it's permalinked.
| Field | openai/o3-mini | anthropic/claude-opus-4-5 |
|---|---|---|
| Provider | openai | anthropic |
| Model ID | o3-mini | claude-opus-4-5 |
| Context | 200K | 200K |
| Max output | 100K | 32K |
| Input / 1M | $1.10 | $15.00 |
| Output / 1M | $4.40 | $75.00 |
| Cached input / 1M | $0.55 | $1.50 |
| Avg cost / 1M | $2.75 | $45.00 |
| Speed | 95 t/s | 65 t/s |
| Quality index | 78.0 | 80.0 |
| MMLU | 86.5 | 91.4 |
| GPQA | 79.7 | 79.6 |
| HumanEval | 87.8 | 92.7 |
| MATH | 97.9 | 96.5 |
| SWE-bench | — | 72.5 |
| Arena Elo | — | — |
| Tools | ✓ | ✓ |
| Vision | — | ✓ |
| Thinking | ✓ | ✓ |
| Streaming | ✓ | ✓ |
| JSON mode | — | — |
| Structured output | ✓ | ✓ |
| Prompt cache | — | ✓ |
Same data, in your terminal: relay models compare openai/o3-mini opus-4.5