feat(providers/openai): add gpt-5.5 and gpt-5.5-pro to Responses API list#29
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…24712) Bumps the `charm.land/fantasy` replace directive to pick up <coder/fantasy#29>, which adds `gpt-5.5` and `gpt-5.5-pro` to `responsesReasoningModelIDs`. Without this, chatd's `useOpenAIResponsesOptions` returns false for GPT-5.5, so it falls back to Chat Completions and never attaches `ResponsesProviderOptions` (losing `store=true` + `previous_response_id` chaining and other Responses-only features). ## Changes - `go.mod`: `github.com/coder/fantasy v0.0.0-20260416152503-959aa39579d2` → `v0.0.0-20260424191546-5ab464a305f4` - `go.sum`: updated hashes Verified `go build ./coderd/x/chatd/...` passes locally. Created on behalf of @ibetitsmike Co-authored-by: blink-so[bot] <211532188+blink-so[bot]@users.noreply.github.com>
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Adds
gpt-5.5andgpt-5.5-protoresponsesReasoningModelIDsso the OpenAI provider routes them to the Responses API (rather than falling back to Chat Completions).OpenAI released GPT-5.5 via the Responses API today. Per the official OpenAI API pricing page and pricing table, the only GPT-5.5 model IDs currently live on the API are:
gpt-5.5— $5 / $0.50 / $30 per 1M (input / cached / output)gpt-5.5-pro— $30 / – / $180 per 1MNo
-mini,-nano, or-codexvariants have been announced.Consumers (e.g.
coder/coderchatd) rely onIsResponsesModelto attachResponsesProviderOptionsand enable Responses-only features likestore=true+previous_response_idchaining.A follow-up PR on coder/coder will bump the
replace charm.land/fantasydirective ingo.modonce this is merged.Created on behalf of @ibetitsmike