Claude Sonnet 5.5
Anthropic · model · context window 1,000,000 tokens.
Pricing (per 1M tokens)
Specifications
Price history
All price changes →Claude Sonnet 5.5 has had 1 tracked price change since we began monitoring. Most recent: cached input $0.2000 → $0.1000 on 8 October 2026. All-time low input rate: $2.00/1M.
Recorded from our daily pricing checks. See the full LLM price tracker.
Intelligence & value
MeasuredWorth it? Claude Sonnet 5.5 is on the price/quality frontier — nothing we track matches its overall Arena score for less. If you can accept a small quality drop, the downgrade calculator finds cheaper options.
Intelligence scores are community Arena ratings from LMArena / arena.ai, used under CC BY 4.0. Snapshot last refreshed 11 October 2026. Scores are a relative signal, not an absolute measure of capability. A Measured score was voted on directly; an Estimated score is inherited from an identical base model (a regional/creator-prefixed hosting duplicate). See our methodology.
Estimate cost with Claude Sonnet 5.5
Claude Sonnet 5.5 is pre-selected below. Enter your token counts and volume to see the cost per request, per day and per month — then switch models to compare.
Results update automatically as you type.
- Input cost
- $0.00200
- Output cost
- $0.00500
- Per request
- $0.00700
- Per day
- $7.00
- Per month
- $210.00
Source: auto-discovery (models.dev). Prices are re-checked daily against the provider’s official pricing; this rate was last changed on 11 October 2026. A recent date here just means the price is still current, not that it moved.