Gemini 2.5 Pro Preview 06-05 is slightly cheaper per million tokens (blended). Claude Sonnet 5.5 leads quality index by 17.9 points (93.2 vs 75.3). Gemini 2.5 Pro Preview 06-05 has the larger context window (1,048,576 vs 1,000,000 tokens).
Claude Sonnet 5.5 vs Gemini 2.5 Pro Preview 06-05
Live catalog fields. Best-in-row is highlighted.
Claude Sonnet 5.5
Anthropic · anthropic__claude-sonnet-5.5
Gemini 2.5 Pro Preview 06-05
Google · google__gemini-2.5-pro-preview
Identity
| Field | anthropic__claude-sonnet-5.5 | google__gemini-2.5-pro-preview |
|---|---|---|
| Provider | Anthropic | |
| Slug | anthropic__claude-sonnet-5.5 | google__gemini-2.5-pro-preview |
| Status | live | live |
| Open weights | No | No |
| License | — | — |
| HuggingFace | — | — |
Quality
| Field | anthropic__claude-sonnet-5.5 | google__gemini-2.5-pro-preview |
|---|---|---|
| Quality index (0–100) | 93.2 | 75.3 |
Cost
| Field | anthropic__claude-sonnet-5.5 | google__gemini-2.5-pro-preview |
|---|---|---|
| Input $ / 1M tokens | $2.00 | $1.25 |
| Cached input $ / 1M | $0.20 | $0.13 |
| Output $ / 1M tokens | $10.00 | $10.00 |
Context
| Field | anthropic__claude-sonnet-5.5 | google__gemini-2.5-pro-preview |
|---|---|---|
| Max context tokens | 1,000,000 | 1,048,576 |
| Max output tokens | 128,000 | 65,536 |
Modalities
| Field | anthropic__claude-sonnet-5.5 | google__gemini-2.5-pro-preview |
|---|---|---|
| Input | text, image, file | file, image, text, audio |
| Output | text | text |