Models / Anthropic
Claude Opus 5.5
by Anthropic ·
anthropic/claude-opus-5.5Claude Opus 5.5 is Anthropic's flagship model for demanding reasoning, coding, and long-horizon agentic work, succeeding Claude Opus 5. It is particularly strong at multi-step changes in large codebases, code...
reasoningtool-usevisionreleased 2026-09-22
Legal score · raw
-
not yet benchmarked
Context
1M
max output 128K
Input
$5
per 1M tokens
Output
$25
per 1M tokens
Suite cost
-
no run recorded
Benchmark results
This model has not been run through the suite yet. See Humanity's Last Lawsuit for the benchmark models are ranked on.
Measured by DocketBuster
These numbers come from DocketBuster's own legal battery, not from DocketRouter's suite. Latest run per metric, with n and a 95% Wilson interval where the source reports one. See docketbuster.com/benchmarks.
| Metric | Value | n | Interval | Measured |
|---|---|---|---|---|
| Coaching quality (rubric, 0 to 8) | 7.20 / 8 | - | rubric mean, no interval reported | 2026-08-23 |