Anthropic model pricing
sonnet-4-6 API pricing
As of 2026-06-16, Anthropic sonnet-4-6 costs $3 per 1M input tokens and $15 per 1M output tokens, from a dated first-party source.
sonnet-4-6 has had a single published price since it launched on 2026-02-17; there is no price change to chart yet. The dated record below is the provenance.
Dated price record
Every row is one price observation, with the date it took effect, the date it was last checked against the official page, and a link to that page. Standard published list price, not promotional, batch, or cached rates.
| Tokens | Effective from | Until | Price /1M | Confidence | Source |
|---|---|---|---|---|---|
| Input | 2026-02-17 | current | $3 | verified | www.anthropic.com |
| Output | 2026-02-17 | current | $15 | verified | www.anthropic.com |
Track what you actually spend
These are list prices. To see what sonnet-4-6 actually costs you, priced at the rate in effect on each day, use Goei, our cross-provider cost dashboard, or the claude-code-cost plugin for Claude Code. Both are powered by this same open dataset.
- The AI Price Index dataset - current prices for every model, JSON endpoints, and how to cite it
- The interactive chart - plot sonnet-4-6 against any other model over time
- The fan-out - the data story behind why AI prices stopped having a single number
Open data, CC BY 4.0. Sources: www.anthropic.com. Prices validated as of 2026-06-22. Release v2026.06.22-ace4133.