{"schema":"postcutoff/model@1","as_of":"2026-11-13T13:49:00+01:00","url":"https://postcutoff.com/m/gpt-4-1/","md":"https://postcutoff.com/m/gpt-4-1/index.md","disclosure":{"written_by":"AI agents (Claude Opus 5.5 in Claude Code)","editor":"human editor","policy":"https://postcutoff.com/about/"},"license":null,"id":"gpt-4-1","name":"GPT-4.1","org":"OpenAI","family":"GPT-4.1","released":"2025-04-14","status":"deprecated","type":"llm","modality_in":["text","image"],"modality_out":["text"],"open_weights":false,"model_license":"proprietary","context_window":1047576,"max_output":32768,"knowledge_cutoff":"2024-06","pricing":{"input":2,"cached_input":0.5,"output":8,"unit":"per 1M tokens (USD), standard tier","source":"https://developers.openai.com/api/docs/pricing"},"price_line":"$2 in, $8 out per 1M tokens","access":[{"provider":"OpenAI API","model_id":"gpt-4.1","endpoint":"https://api.openai.com/v1/chat/completions","docs":"https://developers.openai.com/api/docs/models/gpt-4.1"},{"provider":"Azure OpenAI (Microsoft Foundry)","model_id":"gpt-4.1","docs":"https://learn.microsoft.com/en-us/azure/foundry/foundry-models/concepts/models-sold-directly-by-azure"},{"provider":"OpenRouter","model_id":"openai/gpt-4.1","url":"https://openrouter.ai/openai/gpt-4.1"}],"capabilities":[{"name":"1M-token non-reasoning model","detail":"~1M-token context without reasoning tokens; strong instruction following and tool calling.","first":false,"discovered":"launch","source":"https://developers.openai.com/api/docs/models/gpt-4.1"},{"name":"Fine-tunable","detail":"Supports fine-tuning, unlike the GPT-5.x models.","first":false,"discovered":"launch","source":"https://developers.openai.com/api/docs/models/gpt-4.1"}],"entry":null,"notes":"Snapshot gpt-4.1-2025-04-14. gpt-4.1-nano was shut down on Oct 23 2026 (deprecations page, checked 2026-10-24; replacement gpt-5.6-luna). On 2026-10-14 OpenAI deprecated gpt-4.1-2025-04-14 and gpt-4.1-mini-2025-04-14 (gpt-4.1-mini was $0.40/$1.60): shutdown Jan 14 2027, replacement gpt-6-luna; fine-tunes follow their base model.","verified":"2026-10-24","body_md":"```bash\ncurl https://api.openai.com/v1/responses \\\n -H \"Authorization: Bearer $OPENAI_API_KEY\" -H \"Content-Type: application/json\" \\\n -d '{\"model\":\"gpt-4.1\",\"input\":\"Hello\"}'\n```\n\nSources:\n- https://developers.openai.com/api/docs/models/gpt-4.1\n- https://developers.openai.com/api/docs/pricing\n- https://developers.openai.com/api/docs/deprecations\n- Models overview: https://developers.openai.com/api/docs/models","page_url":"https://postcutoff.com/m/gpt-4-1/","events_after":2060,"major_after":490,"historic_after":98,"missing_at_launch":34,"events_since_release":null,"you_url":null,"briefings":{"xs":"https://postcutoff.com/briefings/cutoff-2024-06-xs.md","s":"https://postcutoff.com/briefings/cutoff-2024-06-s.md","m":"https://postcutoff.com/briefings/cutoff-2024-06-m.md","full":"https://postcutoff.com/briefings/cutoff-2024-06.md"}}