OpenAI · LLM

GPT-4.1

API-only OpenAI model focused on coding and instruction following, with a context window of about 1M tokens.

multimodal

Capabilities

Lineage

Predecessor

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This model

GPT-4.1

Apr 14, 2025

Successor

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View the full GPT lineage →

GPT-4.1 head-to-head comparisons

GPT-4.1 vs GPT-4o
GPT-4.1 is API-only and tuned for coding and long documents with a ~1M context; GPT-4o powers ChatGPT with voice and audio.

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Sources & verification

Information is compiled from official announcements, documentation and reputable industry coverage.
Last verified Oct 28, 2026

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