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Patrick Buckley
3607517814
Capability-registry corrections verified against the official OpenAI reasoning guide, the Azure reasoning-models matrix (2026-06 revision), and the Anthropic models-overview/effort/migration pages (2026-07): OpenAI (vocabulary confirmed none/minimal/low/medium/high/xhigh — no "max" level exists; knob max rides the xhigh ceiling via the ordinal snap): - o1/o3/o3-mini/o3-pro/o4-mini declare low/medium/high (every o-series model except o1-mini) — without declared values the session knob was silently dropped for these models. o1-mini stays effort-free. - gpt-5.5 default corrected none -> medium (5.5 reasons by default, unlike 5.1-5.4). - gpt-5.1-codex-max gets an explicit row: it prefix-matched the gpt-5.1 row (no xhigh), capping the knob's xhigh at high on the one model xhigh was introduced for. Anthropic (effort-page matrix): - claude-sonnet-5 row added — it previously fell through to _ANTHROPIC_DEFAULT (manual budgets, 200k ctx, no effort), all wrong: adaptive-by-default thinking (manual budgets are a 400), sampling params rejected, 1M ctx / 128k out, effort low..max incl. xhigh. - claude-sonnet-4-6 gains its documented "max" effort level (knob xhigh now rides max, not high) and the stale 64k max_output becomes the documented 128k. - fable-5 / opus-4-8 / opus-4-7 / opus-4-6 / opus-4-5 rows verified correct as declared. Knob semantics completed: resolve_reasoning_effort now forwards the knob's "none" position verbatim when the model DECLARES an explicit none level (gpt-5.1+, grok-4.3) — omitting the param there leaves a reasoning-on server default (gpt-5.5: medium) in charge of a knob that promises off. Models without a declared none still omit, and none is never a snap target. Parity harness swaps its synthetic openai shape for the real gpt-5.5 registry row.