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Capability gains

OpenAI launches GPT-4.1 API models for coding and agents

OpenAI released GPT-4.1, GPT-4.1 mini and GPT-4.1 nano to all API developers with stronger coding, instruction following, function calling and million-token context at lower cost.

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CURRENT ASSESSMENT · REVISION 1
TOWARD DOOM52confidence 96/100

Why it moved the index

Broad API access to stronger coding, tool use and long-context reliability materially improves practical agent construction and software-task automation across three price tiers.

Assessment history

  1. R1
    Toward 52 · confidence 96

    New exact API model family with no durable identity or event collision.

    12 Aug 2026

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  1. DoomBench assesses “OpenAI launches GPT-4.1 API models for coding and agents” as evidence moving toward doom, with magnitude 52 and confidence 96 out of 100 in the capability gains category.

  2. The DoomBench assessment of “OpenAI launches GPT-4.1 API models for coding and agents” is based on reporting from OpenAI and records the editorial rationale, source quality, attribution, and revision history.

  3. DoomBench summarizes “OpenAI launches GPT-4.1 API models for coding and agents” as follows: OpenAI released GPT-4.1, GPT-4.1 mini and GPT-4.1 nano to all API developers with stronger coding, instruction following, function calling and...

    https://www.doombench.com/news/openai-launches-gpt-4-1-api-models-for-coding-and-agents-2025-04-14