Side by side pricing and context for Gemini 3.1 Pro and Claude Sonnet 5. Rates are curated catalog values with last verified dates on each model page.
Gemini 3.1 Pro
Newer Gemini Pro preview with higher list rates and long-context tiers. Confirm the preview model id and re-verify pricing before production lock-in.
Input $2.00 / Output $12.00 per 1M
Context 1M · Approx (Gemini family)
Claude Sonnet 5
Balanced Claude for most production apps: strong quality without Opus cost. Check the introductory vs standard rate note and re-run TokenCALC after pricing changes.
Input $2.00 / Output $10.00 per 1M
Context 1M · Approx (Anthropic family)
Quick take
- Input rates match on this snapshot.
- Claude Sonnet 5 is cheaper on output in this catalog snapshot.
- Both last verified on their model pages (2026-08-02 / 2026-08-02).
Rate table
| Metric | Gemini 3.1 Pro | Claude Sonnet 5 |
|---|---|---|
| Input / 1M | $2.00 | $2.00 |
| Output / 1M | $12.00 | $10.00 |
| Cached input / 1M | $0.200 | $0.200 |
| Context | 1M | 1M |
| Tokenizer | Approx (Gemini family) | Approx (Anthropic family) |