fix: drop gpt-5.4 and gpt-5.4-mini from the subscription allowlist - #1190
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Included review availability: Your plan provides up to 4 included reviews per hour; 0 remain after this review. 📝 WalkthroughWalkthroughThe Codex OAuth tests now verify that ChangesCodex OAuth model retirement
Estimated code review effort: 2 (Simple) | ~10 minutes Merge Risk: 🟡 Moderate · up to This change removes two models from the subscription OAuth picker; merging or releasing before August 31, 2026 at 19:00 UTC could hide models that still work, while releasing before Poem
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Full details: Linked Issues checkExplanation The implementation satisfies issue Full details: Out of Scope Changes checkExplanation The changes are limited to the OAuth allowlist documentation, related test constants, regression tests, and an affected fallback expectation. These changes support the linked issue and no unrelated code changes are evident. Full details: Docstring CoverageExplanation No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check. Docstring coverage is scoped to functions touched by this diff. Analyzed 0 functions across 2 files. Full details: Description checkExplanation The description includes the issue reference, change type, detailed rationale, verification steps, test results, UI-change note, and completed checklist items. It also documents the required merge timing and sequencing constraints. ✨ Finishing Touches📝 Generate docstrings
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In `@packages/opencode/src/plugin/codex.ts`:
- Line 137: Update OAUTH_ALLOWED_MODELS and the OAuth loader’s model-deletion
logic so gpt-5.4 and gpt-5.4-mini remain available before 2026-08-31T19:00:00Z,
applying the exclusion only at or after that retirement timestamp; preserve the
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Both retire from the ChatGPT-subscription model picker at 2026-08-31T19:00:00Z. `openai/codex`'s shipped catalog (codex-rs/models-manager/models.json, fetched first-hand) marks both `visibility: "hide"` with `upgrade.retirement_at: "2026-08-31T19:00:00Z"` and names the replacements: gpt-5.4 -> gpt-5.6-terra, gpt-5.4-mini -> gpt-5.6-luna. Both replacements are already in `OAUTH_ALLOWED_MODELS`, so affected users land on a working model with no further change. This is a subscription-picker retirement, NOT an API deprecation: both ids still carry `supported_in_api: true`, neither is on OpenAI's deprecations page, and models.dev marks neither `deprecated`. The filter only runs when `auth.type === "oauth"`, so API-key users are unaffected. It will not self-heal. models.dev hard-deletes an id only once it stops serving entirely, and these remain live API models, so the catalog keeps them. Left in the allowlist they would sit in the subscription picker past the deadline and fail at request time with the same opaque 400 that #1179 rebuilt this list to prevent. Tests: gpt-5.4 / gpt-5.4-mini move out of VERIFIED_ACCEPTED into a new RETIRED_FROM_SUBSCRIPTION constant rather than into VERIFIED_REJECTED — they probed HTTP 200, so they stopped being offered rather than being refused, and collapsing the two would misrepresent the evidence. Adds coverage that each retired id is excluded and that its documented replacement is still offered. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VqnuBDGkh1ZT65Ti7e6DHZ
Review caught a case I had not checked. The filter only ever deletes, so it cannot add a model the catalog lacks. Release binaries built before the release.yml MODELS_DEV_API_JSON fix (#1186/#1188) embed a 2026-03-30 fixture that contains neither gpt-5.6-terra nor gpt-5.6-luna, so on a cold cache this removal takes an OAuth user from three selectable models to one: shipped snapshot, before: gpt-5.3-codex-spark, gpt-5.4, gpt-5.4-mini shipped snapshot, after: gpt-5.3-codex-spark live catalog, after: gpt-5.3-codex-spark, gpt-5.5, sol, luna, terra Released after #1188 the replacements are present and the regression does not occur. Comment-only; records the ordering constraint where the next reader of this allowlist will find it. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VqnuBDGkh1ZT65Ti7e6DHZ
Review correctly flagged the previous note as imprecise. It said the removal leaves "only gpt-5.3-codex-spark", which is true of shipped release binaries but not of a source checkout: the committed models-snapshot.ts blob is newer than the release.yml fixture and does carry gpt-5.5. Measured against all three catalogs: release fixture (105 providers): 3 allowed -> 1 (spark) committed blob (144 providers): 4 allowed -> 2 (spark, gpt-5.5) live models.dev (207 providers): 7 allowed -> 5 (spark, 5.5, sol/luna/terra) The sequencing rationale is unchanged and holds on either reading: no pre-#1188 bundled catalog contains gpt-5.6-terra or gpt-5.6-luna, so the user loses models with no documented replacement to move to until #1188 ships. Co-Authored-By: Claude Opus 5 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01VqnuBDGkh1ZT65Ti7e6DHZ
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… merged #1188 merged as `5993471bad`, so `release.yml` no longer pins `MODELS_DEV_API_JSON` to the 2026-03-30 test fixture and release builds embed a release-time models.dev catalog. The cold-cache figures in this comment were measured against pre-#1188 catalogs and read in the present tense, so they now describe a state that no longer exists. Re-measured by running the unmodified release build path (`MODELS_DEV_API_JSON` unset, which makes `strictCatalog` true) and inspecting the `models-snapshot.ts` it generates: 207 providers, 47 openai models, both `gpt-5.6-terra` and `gpt-5.6-luna` present. Applying the real `disallowedOAuthModelKeys` filter to that catalog, a subscription user goes from seven selectable models to five, losing only the two retired ids. The pre-#1188 wording is kept in the past tense because it is the reason the sequencing existed. The source-checkout figure (four down to two, off the committed `models-snapshot.ts` blob) is unchanged and re-verified. Comment only — no behaviour change.
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| * own. Once release binaries embed a release-time catalog the replacements are | ||
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When an upgrading OAuth user already has a valid models.json cached from before the GPT-5.6 variants appeared, #1188 does not make these replacements available: ModelsDev.Data returns any structurally valid disk cache before consulting the newly embedded release snapshot, without checking its age, and the only refresh runs after the process has stayed alive for an hour. This removal therefore leaves such users without either the retired models or Terra/Luna—indefinitely for short-lived CLI invocations—despite the release containing the refreshed snapshot. Invalidate/refresh old caches or retain the retired entries until the replacement IDs are actually present.
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Gate 2 (ship after #1188) is satisfied — verified, not inferred#1188 merged at 2026-08-30T02:42:44Z as What was actually runRather than reason about it, I ran the unmodified release catalog path: I then applied the real runtime filters to that generated snapshot — the Both replacements are present: That is the gate condition, and it holds. Corrected model countsThe 3→1 and 4→2 figures were measured against pre-#1188 catalogs. The first is now obsolete, because no release build embeds the fixture any more. Re-measured:
So on a shipped, post-#1188 binary this change removes exactly the two retired ids and leaves five, replacements included. Nobody is stranded. The source-checkout row is unchanged and re-verified — that blob predates every gpt-5.6 entry, so a developer running from source still sees 4→2 until the next release build refreshes it. That is a stale-blob artefact, not something this PR introduces, and it does not reach released users. Rebase and gatesThe branch was 1 commit behind. Rebased onto
Nothing regressed. The generated snapshot and the temporary analysis harness were both reverted; the only tree change is one commit correcting the now-stale comment in Still not mergeable, and not because of thisGate 1 is untouched: this must merge after 2026-08-31T19:00:00Z. That timestamp is when the removal becomes correct, not a deadline to beat. Both models work today, so merging before it is the only action that costs anyone anything. There is nothing to race — the PR simply sits until the date passes. I have deliberately not merged or approved it. |
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Issue for this PR
Closes #1189
Type of change
What does this PR do?
Removes
gpt-5.4andgpt-5.4-minifromOAUTH_ALLOWED_MODELS. Both retire from the ChatGPT-subscription model picker at 2026-08-31T19:00:00Z.Evidence, fetched first-hand from
https://raw.githubusercontent.com/openai/codex/main/codex-rs/models-manager/models.json(the catalogopenai/codexships in its own repo):The migration text is explicit: "GPT-5.4 is no longer available. Codex now uses GPT-5.6 Terra in place of GPT-5.4."
This is the subscription path only, not an API deprecation. The two follow different schedules and should not be conflated. Both ids still carry
supported_in_api: true, neither is on OpenAI's API deprecations page, and models.dev marks neitherdeprecated.OAUTH_ALLOWED_MODELSis consulted only whenauth.type === "oauth"— the models loader returns{}for every other auth type — so API-key users are unaffected and keep both ids.The sequencing requirement — raised in review, and now satisfied
The allowlist only ever deletes from the catalog; it cannot add. No pre-#1188 bundled catalog contained either replacement model, which is what made the ordering matter.
#1188 has since merged (
5993471bad), removing theMODELS_DEV_API_JSONpin fromrelease.yml, so release builds now embed a release-time models.dev catalog instead of a 2026-03-30 test fixture. The figures below were re-measured after that merge by running the unmodified release build path (MODELS_DEV_API_JSONunset, which is what makesstrictCatalogtrue) and applying the realdisallowedOAuthModelKeysfilter to the catalog it generates.models-snapshot.tsblob — what a source checkout usesrelease.ymlfixturespark (1)The gate is met. On a post-#1188 build this change costs a subscription user two models out of seven and leaves five, including both documented replacements (
gpt-5.6-terra,gpt-5.6-luna, present withrelease_date2026-07-09). The "drops cold-cache users to one model" scenario applied only to binaries built with the fixture pin, and no future release build produces one.The source-checkout row is unchanged and re-verified: that blob predates every gpt-5.6 entry, so a developer running from source sees four models drop to two until the next release build refreshes it. That is a stale-blob artefact, not a regression this PR introduces, and it does not affect released users.
Why remove rather than leave it
The options were: remove, or leave it and let the failure surface.
Leaving it is the worse option. It does not self-heal. models.dev hard-deletes an id only once it stops serving traffic entirely (its stated policy in sst/models.dev#3707), and these remain live API models, so the catalog will keep listing them. They would stay in the subscription picker indefinitely and fail at request time with an opaque 400 — exactly the failure mode #1179 rebuilt this allowlist to eliminate.
Why open it before the date at all. Not to beat the timestamp — to have the change reviewed and queued so it can merge promptly once the timestamp passes, rather than being remembered on the day. Reviewing it costs the same either way; only the merge is gated.
I deliberately did not add a runtime date gate (allow the ids until
Date.now()passes the retirement timestamp). It changes behaviour with no code change, which is surprising; retirement dates slip, and a hardcoded cutoff in a shipped binary would break working models with no override if OpenAI postpones; and it deepens the divergence from upstream's filter that this file already calls out as a maintenance problem. It also would not have fixed the cold-cache case, which was a missing catalog entry rather than a filter decision — #1188 was always the right fix for that, and it is now in.Note on upstream. Upstream's
ALLOWED_MODELSinpackages/opencode/src/plugin/openai/codex.tsis["gpt-5.5", "gpt-5.3-codex-spark", "gpt-5.4", "gpt-5.4-mini"], so it still contains both ids and this PR diverges until they follow. That file is the unwired in-progress refactor in our fork, so it does not affect runtime behaviour here, and I have not touched it.How did you verify your code works?
Verified the retirement claim first-hand rather than taking it from a review comment — fetched and parsed
openai/codex'smodels.json(HTTP 200, 424,117 bytes, 10 slugs).gpt-5.4andgpt-5.4-miniare the only two entries carrying aretirement_at.Confirmed the blast radius is OAuth-only by reading the loader:
packages/opencode/src/plugin/codex.tsreturns{}whenauth.type !== "oauth"before the filter is reached.Confirmed models.dev still lists both, so the catalog will not remove them for us — parsed the live
https://models.dev/api.json(207 providers, 47 openai models): both present, neither carryingstatus: "deprecated".Measured the cold-cache effect across all three catalogs — the table above, computed by intersecting the allowlist before and after against each. This is the check I should have run before opening the PR; a reviewer caught its absence, and a second reviewer caught that my first correction still conflated two artefacts.
Re-measured after #1188 merged. Ran the unmodified release catalog path (
packages/opencode/script/build.tswithMODELS_DEV_API_JSONandOPENCODE_MODELS_URLunset, sostrictCatalogis true exactly as in a release build). It fetched models.dev live, passed the new fail-closed guard, and wrotemodels-snapshot.ts:Then applied the real runtime filters to that generated snapshot — the
provider.tspre-filters (gpt-5-chat-latest,status: alpha,status: deprecated) followed bydisallowedOAuthModelKeysimported fromsrc/plugin/codex.ts, not a reimplementation:The generated snapshot and the temporary harness were both reverted; the working tree is unchanged apart from the committed comment fix.
Tests.
gpt-5.4/gpt-5.4-minimove out ofVERIFIED_ACCEPTEDinto a newRETIRED_FROM_SUBSCRIPTIONconstant rather than intoVERIFIED_REJECTED. That distinction is deliberate: both probed HTTP 200, so they stopped being offered rather than being refused, and folding them into the rejected list would misstate what was measured. Added two tests — each retired id is excluded from both the set andshouldAllowOAuthModel, and each documented replacement is still offered. Also updated thefalls back to the key when api.id is absentexpectation, wheregpt-5.4is now among the deleted keys.Gates. Run on this branch and on unmodified
main. Re-run after rebasing ontoorigin/mainat5993471bad(#1188), which was a clean rebase — the two PRs share no files:bun run typecheckbun run script/upstream/analyze.ts --markers --base origin/main --strictbun run lintbun test test/plugin/bun test test/provider/build-models-catalog.test.ts(#1188's guard, post-rebase)The single lint error is pre-existing and unrelated —
typescript-eslint(consistent-return)atpackages/http-recorder/test/record-replay.test.ts:285, identical on unmodifiedmain. Warning count is unchanged from baseline.Not verified: I did not re-probe either id against the live backend, and I have no way to observe the retirement taking effect ahead of the date. The claim rests on OpenAI's own shipped catalog, which is a primary source but is a client-side default — see the note in
codex.tsabout it disagreeing with the per-account discovery endpoint on other ids.Screenshots / recordings
Not a UI change.
Checklist
Note
Medium Risk
Changes which models OAuth/Codex subscription users can select; scope is limited to the oauth auth path and documented replacements remain available on current release catalogs.
Overview
Removes
gpt-5.4andgpt-5.4-minifrom the ChatGPT-subscription (OAuth) model allowlist so they no longer appear in the picker after Codex retires them (2026-08-31T19:00:00Z). Documented replacementsgpt-5.6-terraandgpt-5.6-lunastay allowed.Because models.dev still lists these as live API models, the catalog would not drop them—the static
OAUTH_ALLOWED_MODELSfilter is what prevents subscription users from selecting ids that would fail at request time. API-key auth is unchanged; the filter runs only whenauth.type === "oauth".Tests move the two ids from verified-accepted into
RETIRED_FROM_SUBSCRIPTION, assert they are blocked by the set andshouldAllowOAuthModel, confirm replacements still pass, and updatedisallowedOAuthModelKeysexpectations (including whenapi.idis missing).Reviewed by Cursor Bugbot for commit a21f6fa. Bugbot is set up for automated code reviews on this repo. Configure here.