Opus 5.5: judge complex work by accepted outcomes
Anthropic positions Opus 5.5 for sustained, complex work. A useful migration test needs to measure more than benchmark scores.
Read the analysis →Targets complex coding and sustained tasks requiring judgment. Evaluate accepted outcomes and unintended changes.
claude-opus-5-5Rates include the selected group multiplier. All token rates below are USD per million tokens; request rates are separate. A pricing boundary is not the model’s maximum context window.
| Prompt tier (tokens) | Input | Output | Cache read | Cache write |
|---|---|---|---|---|
| ≥ 0 | $0.8 | $4 | $0.04 | $1 |
Reference identifier: claude-opus-5-5 · Checked Oct 15, 2026
| Prompt tier (tokens) | Input | Output | Cache read | Cache write |
|---|---|---|---|---|
| ≥ 0 | $4 | $20 | $0.2 | $5 |
Test-backed refactoring, document research and planning. Validate in an isolated environment before expanding scope.
Standard and fast modes have different prices. Long tasks need budgets, checkpoints and recovery paths.
Vendor capability announcement ↗Published price snapshot, USD per million tokens. Account availability and the actual bill must be checked separately. Route names retain their configured labels.
Base-tier rates are available below without JavaScript. Enable JavaScript to filter or calculate.
| Model | Provider | Input / 1M | Output / 1M | Per-request rate |
|---|---|---|---|---|
| claude-opus-5-5 | Anthropic | $0.8 | $4 | — |
POSIX shell template for a channel offering Chat Completions. Set the account-provided base URL (normally including /v1) and API key in your terminal. Confirm this exact identifier is enabled. Running it makes a billable request; this page does not send it.
curl "$YOUJIE_BASE_URL/chat/completions" \
-H "Authorization: Bearer $YOUJIE_API_KEY" \
-H "Content-Type: application/json" \
-d '{"model":"claude-opus-5-5","messages":[{"role":"user","content":"Return a JSON object with the sum of 17 and 25 under the key total. No other text."}],"stream":false}'Acceptance target: parse the final message as JSON and verify total equals 42. This is a known mathematical target, not a recorded model response. Also inspect HTTP status, response structure and actual usage. No tool calling or strict-schema feature is assumed.
Designed for high-volume summarization, classification and bounded subagent tasks, with adjustable effort.
Pricing & details →Targets everyday development, document work and well-scoped agent workflows. Compare quality and cost across complete tasks.
Pricing & details →