Know the exact model.
The canonical record is anthropic:claude-sonnet-4-5. Capabilities and context limits reflect source observations; the limits of a particular inference endpoint may differ.
Inclusion in the radar does not mean this model is served by Flonno. For the model currently available through our API, see Qwen3.8 Flash 27B and API pricing.
Artifact evidence
claude-sonnet-4-5-20250929
official api · Pinned artifact · API-key dependent. First observed Aug 9, 2026; last observed Oct 13, 2026.
claude-sonnet-4-5-20250929
official changelog · Pinned artifact · Official provider announcement. First observed Sep 30, 2026; last observed Oct 10, 2026.
claude-sonnet-4-5
official changelog · Mutable source entry · Official provider announcement. First observed Aug 9, 2026; last observed Oct 10, 2026.
Evaluate it for your workflow.
Pin the artifact and inference configuration. Use representative inputs with a written answer rubric, then record accepted results, errors, complete request time and token usage. Keep output budgets and concurrency explicit.
Benchmark results apply to their recorded version and method. They do not transfer automatically to a different runtime or a quantized derivative.
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