{"record":{"id":"5fa6eef7a60ffaa3","repo":"unslothai/unsloth","slug":"chatgpt-codex-generation-failed-f-code-if-co","errorCode":null,"errorMessage":"ChatGPT Codex generation failed{f' ({code})' if code else ''}.","messagePattern":"ChatGPT Codex generation failed(.+?)\\)' if code else ''\\}\\.","errorType":"exception","errorClass":"CodexTransportError","httpStatus":null,"severity":"error","filePath":"studio/backend/core/inference/openai_codex_client.py","lineNumber":710,"sourceCode":"                                else (\"tool_calls\" if saw_tool_call else \"stop\")\n                            )\n                            yield _chunk(\n                                completion_id,\n                                model,\n                                delta,\n                                finish,\n                                responses_usage_to_chat(response_body.get(\"usage\")),\n                            )\n                            emitted_terminal = True\n                            break\n                        elif kind in (\"response.failed\", \"error\"):\n                            error = (\n                                event.get(\"error\")\n                                or (event.get(\"response\") or {}).get(\"error\")\n                                or {}\n                            )\n                            code = error.get(\"code\") if isinstance(error, dict) else None\n                            raise CodexTransportError(\n                                f\"ChatGPT Codex generation failed{f' ({code})' if code else ''}.\"\n                            )\n                except httpx.HTTPError:\n                    if cancel_event is not None and cancel_event.is_set():\n                        return\n                    raise\n        finally:\n            if cancel_task is not None:\n                cancel_task.cancel()\n        if not emitted_terminal and not (cancel_event is not None and cancel_event.is_set()):\n            raise CodexTransportError(\"ChatGPT stream ended before completion.\")\n","sourceCodeStart":692,"sourceCodeEnd":722,"githubUrl":"https://github.com/unslothai/unsloth/blob/203007d19051dcd2ae33876786d117c99f6b0368/studio/backend/core/inference/openai_codex_client.py#L692-L722","documentation":"The SSE stream delivered a terminal 'response.failed' or 'error' event: ChatGPT accepted the request but the generation itself failed server-side. The error code extracted from event.error.code (or response.error.code) is embedded in the message, e.g. 'ChatGPT Codex generation failed (server_error)'.","triggerScenarios":"Streaming a generation that dies mid-completion; the endpoint emits event: response.failed or a top-level error event. Code values identify the cause (server_error, content_policy_violation, rate_limit, etc.).","commonSituations":"Prompt or output tripping content policy; upstream capacity errors during peak load; overly long generations hitting server limits; tool-heavy requests failing on the server.","solutions":["Inspect the (code) in the message to route: server_error → retry with backoff; content policy → adjust prompt; rate_limit → back off","Retry once for transient codes before surfacing to the user","Reduce max output tokens or split the task if failures cluster on long generations"],"exampleFix":null,"handlingStrategy":"try-catch","validationCode":null,"typeGuard":null,"tryCatchPattern":"try:\n    collect(stream)\nexcept CodexTransportError as exc:\n    if 'generation failed' not in str(exc):\n        raise\n    code = parse_failure_code(str(exc))\n    if code in ('server_error', 'rate_limit'):\n        return await retry_with_backoff(request)\n    surface_policy_or_permanent_error(code)","preventionTips":["Map failure codes to policies: retry transient codes, block prompts that trip content policy","Cap max output tokens to reduce exposure to mid-generation failures","Keep partial output only for display, never treat it as a completed generation"],"tags":["codex","generation","upstream","sse"],"backgroundTag":null,"analyzedSha":"203007d19051dcd2ae33876786d117c99f6b0368","analyzedAt":"2026-08-15T02:48:39.846Z","schemaVersion":2},"datasetVersion":"2026-08-15T22:17:37.221Z"}