Claude Sonnet 5 is 1.2× cheaper per million tokens (blended). Claude Sonnet 5 leads quality index by 3.5 points (85.3 vs 81.8). Gemini 3.1 Pro Preview has the larger context window (1,048,576 vs 1,000,000 tokens).
Claude Sonnet 5 vs Gemini 3.1 Pro Preview
Live catalog fields. Best-in-row is highlighted.
Claude Sonnet 5
Anthropic · anthropic__claude-sonnet-5
Gemini 3.1 Pro Preview
Google · google__gemini-3.1-pro-preview
Identity
| Field | anthropic__claude-sonnet-5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Provider | Anthropic | |
| Slug | anthropic__claude-sonnet-5 | google__gemini-3.1-pro-preview |
| Status | live | live |
| Open weights | No | No |
| License | — | — |
| HuggingFace | — | — |
Quality
| Field | anthropic__claude-sonnet-5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Quality index (0–100) | 85.3 | 81.8 |
Cost
| Field | anthropic__claude-sonnet-5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Input $ / 1M tokens | $2.00 | $2.00 |
| Cached input $ / 1M | $0.20 | $0.20 |
| Output $ / 1M tokens | $10.00 | $12.00 |
Context
| Field | anthropic__claude-sonnet-5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Max context tokens | 1,000,000 | 1,048,576 |
| Max output tokens | 128,000 | 65,536 |
Modalities
| Field | anthropic__claude-sonnet-5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Input | text, image, file | audio, file, image, text, video |
| Output | text | text |