Release facts and lifecycle
- Release announced
- September 22, 2026
- Model ID
- claude-opus-5-5
- Announced context
- 1 million tokens by default
- Announced maximum output
- 128,000 tokens
- Thinking
- Always-on adaptive thinking
Original provider sources checked . These are source facts, not a benchmark of Flonno's deployment.
Open the live model record, benchmarks and release journal →Where to start
Give the agent a bounded repository task and inspect the final patch, test execution and recovery after tool failures. Compare successful completions and total cost, including reasoning and retries.
- Long-running agents
- Repository changes
- Knowledge work
What to check before deployment
Always-on adaptive thinking affects output usage and latency. Announced model limits and standard prices do not describe every cloud platform or inference configuration.
Confirm the exact model ID, checkpoint revision and endpoint in your test record. A base model name does not establish a provider's quantization, accepted inputs, context limit or current availability.
Measure useful results
Build a small evaluation from the workflow you already run. Define the expected answer before testing. Track correct results, formatting errors, retries, complete request time and reported input and output usage.
Count rejected answers and manual corrections. A low token rate can still produce a high cost per accepted result when the workflow needs retries or repair.
Estimate your token budget →Sources and scope
This page is an editorial evaluation guide, not a benchmark result or a claim that this model is served by Flonno.
Official model announcement ↗License / access: Provider service terms. Read the linked license or service terms for the full conditions. Original release and lifecycle sources checked 2026-10-10.