OpenAI Model Fixes and Updates

This cluster addresses various fixes and updates related to OpenAI model compatibility and functionality within the framework.

14 PRs

fix models Representative: #13119

#	Title	Author	Created	GitHub
7819	Fix: clamp OpenAI Responses function_call item IDs	LeLe1110	2026-02-03	View
10823	Update Synthetic provider to OpenAI Completions + use better model	reissbaker	2026-02-07	View
13119	fix: add forward-compat for google-antigravity claude-opus-4-6 models rep	sdb001	2026-02-10	View
13361	fix(google-antigravity): add Opus 4.6 support and fix thinking.signature erro...	SovranAMR	2026-02-10	View
14106	fix(model): hardcoded fallback for claude-opus-4-6 when no template exists	anajuliabit	2026-02-11	View
16100	fix: convert unsigned thinking blocks to text to prevent signature error	claw-sylphx	2026-02-14	View
16891	fix(models): generic opus-4-6 forward-compat for all providers	battman21	2026-02-15	View
17914	Resolve merge conflicts in PR #13361	SovranAMR	2026-02-16	View
18697	fix: include forward-compat models in model catalog for allowlist val…	dmitry-orabey	2026-02-17	View
19533	fix: allow forward-compat models in buildAllowedModelSet	Anthony-g-dev	2026-02-17	View
19927	fix(agents): replace hardcoded Anthropic model IDs with pattern matching	Milofax	2026-02-18	View
20122	Fix sonnet alias resolving to opus in OpenCode Zen model aliases	Clawborn	2026-02-18	View
20123	Add Claude Sonnet 4.6 to OpenCode Zen model catalog	Clawborn	2026-02-18	View
23250	feat: add Sonnet 4.6 forward compat for google-antigravity	Oceanswave	2026-02-22	View