Every line, version by version
Opus 5.5 vs Claude Opus 4.8: prices per token, context window, benchmark scores, and what changed between the two versions.
Prices are read live from the provider pricing pages, so this table cannot go stale.
| Version | Status | Released | Input | Output | Cached | Context | Blended /1M | Sample /mo |
|---|---|---|---|---|---|---|---|---|
5.5 Price your own usage | Active | 2026-09-22 | $4.00 | $20.00 | $0.200 | 1,000K | $12.00 | $14.00 |
Claude Opus 4.8 4.8 Listed in Anthropic's Legacy models section; superseded by Opus 5.5. Price your own usage | Legacy | — | $5.00 | $25.00 | $0.500 | 200K | $15.00 | $17.50 |
Sample cost = 1M input + 500K output tokens per month at list price. A model with a long-context band is priced on that band — the rule is printed in the row. Use the calculator below for your own workload.
Only one version of this line has a verifiable score set so far, so there is nothing to compare it against yet.
Adjust the monthly volume — every version of the line recomputes instantly.
List price only: cached input, batch discounts and off-peak rates are not included. The sample column prices 1M input + 500K output tokens per month.