Model comparison · updated 2026-07-28
Side-by-side pricing for1 million tokens
| Claude Sonnet 5 | Gemini 3.1 Pro | Verdict | |
|---|---|---|---|
| Provider | Anthropic | -- | |
| Context window | 1M | 1M | -- |
| Input / 1M tokens | $2 | $2 | Same price |
| Output / 1M tokens | $10 | $12 | Claude Sonnet 5 is 1.2x cheaper |
| Output:input ratio | 5x | 6x | -- |
| Tier | balanced | balanced | -- |
Claude Sonnet 5: Introductory pricing — list price is $3 / $15 from Sep 1, 2026.
Gemini 3.1 Pro: Prices double for prompts above 200K tokens ($4 / $18).
Claude Sonnet 5
5,000,000 tokens
Gemini 3.1 Pro
5,000,000 tokens
Claude Sonnet 5
1,000,000 tokens
Gemini 3.1 Pro
833,333 tokens
Claude Sonnet 5 gives you 1.2x more output for the same budget.