{"id":"nr-openai-retires-gpt-5-5-in-chatgpt-and-codex-8383af","slug":"openai-retires-gpt-5-5-in-chatgpt-and-codex-8383af","title":"OpenAI retires GPT-5.5 in ChatGPT and Codex on October 14","observed_at":"2026-09-18T13:48:49+00:00","record_date":"2026-09-18","date_kind":"observed_at","novelty":"new","source_platform":"x.com","topics":["model-deprecation","coding-agents"],"entities":["OpenAI","ChatGPT","Codex"],"related_patterns":[],"source_url":"https://x.com/ChatGPT/status/2099954190600876533","source_urls":["https://x.com/ChatGPT/status/2099954190600876533"],"basket":{"id":"0325e6b8-f527-4f9b-bfa3-3f30e57f380b","revision":1,"cluster_id":"8383af0a-2e15-40d4-ae1e-5ae3a8c60be5"},"type":"raw_signal","description":"OpenAI will retire GPT-5.5 in ChatGPT, ChatGPT Work and Codex on October 14 and points Codex users to GPT-5.6 Sol or GPT-6 Astra.","why_it_matters":"For teams running automated Codex workflows this is a migration deadline: prompts, tool calls and long tasks tuned for GPT-5.5 should be rerun on the replacement model before the cutoff. The post does not mention the API or describe behavioural differences between the models.","verification_level":"source-inspected","signal_type":"newsroom_basket_signal","schema_version":"newruntime-agent-readable-v0.2","stable_id":"signal:openai-retires-gpt-5-5-in-chatgpt-and-codex-8383af","retrieval_nugget":"OpenAI will retire GPT-5.5 in ChatGPT, ChatGPT Work and Codex on October 14 and points Codex users to GPT-5.6 Sol or GPT-6 Astra. The ChatGPT account announced that GPT-5.5 will be retired on October 14 in ChatGPT, ChatGPT Work and Codex across all plans. Users of GPT-5.5 in Codex are told to switch to GPT-5.6 Sol or GPT-6 Astra. For","status":"published","visuals":[],"routes":{"html":"https://newruntime.com/signals/openai-retires-gpt-5-5-in-chatgpt-and-codex-8383af/","markdown":"https://newruntime.com/signals/openai-retires-gpt-5-5-in-chatgpt-and-codex-8383af.md","json":"https://newruntime.com/signals/openai-retires-gpt-5-5-in-chatgpt-and-codex-8383af.json"},"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"next_reads":[{"type":"topic","path":"/topics/model-deprecation/","url":"https://newruntime.com/topics/model-deprecation/","title":"Model Deprecation","reason":"Explore the model-deprecation topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/model-deprecation.md","json_url":"https://newruntime.com/topics/model-deprecation.json"},{"type":"topic","path":"/topics/coding-agents/","url":"https://newruntime.com/topics/coding-agents/","title":"Coding Agents","reason":"Explore the coding-agents topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/coding-agents.md","json_url":"https://newruntime.com/topics/coding-agents.json"},{"type":"collection","path":"/signals/","url":"https://newruntime.com/signals/","title":"Raw Signals","reason":"Open every source-linked raw signal.","media_type":"text/html","json_url":"https://newruntime.com/signals.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}