Compare
2–4 model comparison. Best-in-row is highlighted.
Claude Opus 5.5
Anthropic · anthropic__claude-opus-5.5
Gemini 3.1 Pro Preview
Google · google__gemini-3.1-pro-preview
Identity
| Field | anthropic__claude-opus-5.5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Provider | Anthropic | |
| Slug | anthropic__claude-opus-5.5 | google__gemini-3.1-pro-preview |
| Status | live | live |
| Open weights | No | No |
| License | — | — |
| HuggingFace | — | — |
Quality
| Field | anthropic__claude-opus-5.5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Quality index (0–100) | 80.6 | 79.3 |
Cost
| Field | anthropic__claude-opus-5.5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Input $ / 1M tokens | $4.00 | $2.00 |
| Cached input $ / 1M | $0.20 | $0.20 |
| Output $ / 1M tokens | $20.00 | $12.00 |
Context
| Field | anthropic__claude-opus-5.5 | 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-opus-5.5 | google__gemini-3.1-pro-preview |
|---|---|---|
| Input | text, image, file | audio, file, image, text, video |
| Output | text | text |