Release facts and lifecycle
- Release announced
- September 29, 2026
- Model ID
- gpt-6.1-sol
- API formats
- Responses and Chat Completions
- Latest lifecycle note
- Ultrafast mode added to Responses on October 8, 2026
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
Begin with a repository task that has failing tests and a defined patch rubric. Compare complete task completion, tool execution, and accepted changes before choosing a service tier.
- Coding agents
- Professional work
- Tool workflows
What to check before deployment
OpenAI directs tool-calling workflows to the Responses API. Record the service tier and reasoning setting; Ultrafast mode was added on October 8, 2026.
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.