Mistral Small 4 is 40.0× cheaper per million tokens (blended). Claude Opus 5 has the larger context window (1,000,000 vs 262,144 tokens, 3.8×). Mistral Small 4 is open-weights; the other is not.
Claude Opus 5 vs Mistral Small 4
Live catalog fields. Best-in-row is highlighted.
Claude Opus 5
Anthropic · anthropic__claude-opus-5
Mistral Small 4open
Mistral · mistralai__mistral-small-2603
Identity
| Field | anthropic__claude-opus-5 | mistralai__mistral-small-2603 |
|---|---|---|
| Provider | Anthropic | Mistral |
| Slug | anthropic__claude-opus-5 | mistralai__mistral-small-2603 |
| Status | live | live |
| Open weights | No | Yes |
| License | — | — |
| HuggingFace | — | mistralai/Mistral-Small-4-119B-2603 |
Quality
| Field | anthropic__claude-opus-5 | mistralai__mistral-small-2603 |
|---|---|---|
| Quality index (0–100) | — | — |
Cost
| Field | anthropic__claude-opus-5 | mistralai__mistral-small-2603 |
|---|---|---|
| Input $ / 1M tokens | $5.00 | $0.15 |
| Cached input $ / 1M | $0.50 | $0.01 |
| Output $ / 1M tokens | $25.00 | $0.60 |
Context
| Field | anthropic__claude-opus-5 | mistralai__mistral-small-2603 |
|---|---|---|
| Max context tokens | 1,000,000 | 262,144 |
| Max output tokens | 128,000 | 209,715 |
Modalities
| Field | anthropic__claude-opus-5 | mistralai__mistral-small-2603 |
|---|---|---|
| Input | text, image, file | text, image |
| Output | text | text |