Spark model unavailable despite quota

“The main issue is the mismatch between the displayed Spark quota and actual access: the interface shows an entirely unused allowance, but requests are rejected.”

Is this your bug? What gets counted gets fixed. Pile on.

Paste this into your agent. It files your report, with your error and version.

I hit this bug: rapsheet.dev/sheets/codex/issues/9700/file
Follow it to file my report. Show me the text before you send.

No install. No account. Public and anonymous. The link asks your agent for one report, nothing else. What it sends

Quiet. No reports and thumbs-up in the last two weeks, down from 24 a week at the mid-September peak.

Spark model rejected with HTTP 400 despite full quota shown. Usage page shows 100% remaining Spark limits, but Spark is missing from the model selector and codex -m gpt-5.3-codex-spark fails.

Is this your bug?

File my report

Where: model selector
Error text: "The 'gpt-5.3-codex-spark' model is not supported when using Codex with a ChatGPT account."
{"type":"error","status":400,"error":{"type":"invalid_request_error","message":"The 'gpt-5.3-codex-spark' model is not supported when using Codex with a ChatGPT…Pasted in 2 reports
Versions: 0.154.0 to 26.908.70816
Platforms: macOS, Windows
How bad: Some reports say it blocks them completely.

Part of: Codex model picker missing models10 bugs

GPT-6 models missing from picker37 people
Luna missing from model picker9 people
GPT-6 Astra missing from picker7 people
Sol model rejected on ChatGPT sign-in19 people
Models missing from picker3 people
Ultrafast option disappears2 people
Newer models missing in picker2 people
Stale IntelliJ model picker4 people
6 Sol switch rejected5 people

Not quite your bug?

Spark missing from model selector9 people
Model at capacity errors31 people

Original reports8, newest first

Sep 16, 2026Spark allowance shows 100% remaining but prolite account receives model-not-supported HTTP 400On GitHub#46052
Sep 16, 2026GPT-5.3-Codex-Spark quota visible but model unavailable for ChatGPT Pro accountOn GitHub#45972
Sep 15, 2026[macOS / Pro] Spark limits show 100% remaining, but CLI 0.154.0 rejects gpt-5.3-codex-spark with HTTP 400On GitHub#45857
Sep 15, 2026Spark shows available quota, but does not appear in the selector and the server rejects its useOn GitHub#45728
Sep 15, 2026GPT-5.3-Codex-Spark quota visible, but Codex says model is unsupported with ChatGPT accountOn the forum#1397773
Sep 15, 2026Unable to Access GPT-5.3-Codex-Spark with a ChatGPT Pro SubscriptionOn GitHub#45666
Sep 15, 2026GPT-5.3-Codex-Spark quota visible on Pro account but model unavailable in CodexOn GitHub#45613
Sep 14, 2026ChatGPT Pro: Spark quota shows 100% remaining, but the model is unavailable and requests return HTTP 400On GitHub#45594