Side by side pricing and context for Claude 3.5 Sonnet and Claude Sonnet 5. Rates are curated catalog values with last verified dates on each model page.
Claude 3.5 Sonnet
Widely deployed Anthropic Sonnet generation before Sonnet 4.x/5. Keep for migration cost checks when older apps still call Claude 3.5 Sonnet.
Input $3.00 / Output $15.00 per 1M
Context 200K · Approx (Anthropic 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
- Claude Sonnet 5 is cheaper on input in this catalog 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 | Claude 3.5 Sonnet | Claude Sonnet 5 |
|---|---|---|
| Input / 1M | $3.00 | $2.00 |
| Output / 1M | $15.00 | $10.00 |
| Cached input / 1M | $0.300 | $0.200 |
| Context | 200K | 1M |
| Tokenizer | Approx (Anthropic family) | Approx (Anthropic family) |