Describe goals to complete cross-app tasks automatically Start natural voice conversations anytime with GPT-Live Get better work quality at lower cost Long tasks can move from draft to presentation more easily Track the latest safety rules for bigger models Translate naturally during calls, meetings, and travel Easily automate multi-step daily tasks at lower cost Make Claude easier to deploy through AWS Claude Fable 5 is usable again after the pause Keep research tools and analysis in one place Delegate more everyday coding work to Claude Measure how well AI agents handle ambiguous biology research judgments Claude Sonnet 5 is built for heavier coding and work tasks HP partnership makes enterprise rollout easier Tag Claude in Slack to delegate tasks with your whole team Hand Slack tasks to Claude more easily Confidential AI gets stronger for sensitive workloads Gemini API key management is moving to safer auth keys Claude expands more easily into Korean businesses and research Anthropic expands Claude adoption and research in Korea Describe goals to complete cross-app tasks automatically Start natural voice conversations anytime with GPT-Live Get better work quality at lower cost Long tasks can move from draft to presentation more easily Track the latest safety rules for bigger models Translate naturally during calls, meetings, and travel Easily automate multi-step daily tasks at lower cost Make Claude easier to deploy through AWS Claude Fable 5 is usable again after the pause Keep research tools and analysis in one place Delegate more everyday coding work to Claude Measure how well AI agents handle ambiguous biology research judgments Claude Sonnet 5 is built for heavier coding and work tasks HP partnership makes enterprise rollout easier Tag Claude in Slack to delegate tasks with your whole team Hand Slack tasks to Claude more easily Confidential AI gets stronger for sensitive workloads Gemini API key management is moving to safer auth keys Claude expands more easily into Korean businesses and research Anthropic expands Claude adoption and research in Korea

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AI BriefingOpenAIFeature Updates17:09

AI summarized from verified sources

OpenAI Launches GPT-5.4 Mini & Nano Fast Small Models

Accelerates coding & agents at low cost

SOURCE CHECK

3 sources

VERIFIED

Sources

Primary / openai.com

Official Blog

Supporting / x.com

Official Blog

Supporting / x.com

Official Blog

Key Points

1Mini: $0.75/1M in, $4.50/1M out
2Nano: $0.20/1M in, $1.25/1M out - cheapest
32x faster, 54.4% SWE-Bench
4Free ChatGPT users access mini

OpenAI introduced its most capable small models, GPT-5.4 mini and nano. Mini is 2x faster than GPT-5 mini, optimized for coding, multimodal, and subagents with 400k context. Nano is the cheapest for light tasks. Enables fast, low-latency business AI easily via API, ChatGPT, Codex.

What changed

OpenAI introduced its most capable small models, GPT-5.4 mini and nano. Mini is 2x faster than GPT-5 mini, optimized for coding, multimodal, and subagents with 400k context. Nano is the cheapest for light tasks. Enables fast, low-latency business AI easily via API, ChatGPT, Codex.

Why it matters

Accelerates coding & agents at low cost

What to watch

Accelerates coding & agents at low cost Key checks: Mini: $0.75/1M in, $4.50/1M out / Nano: $0.20/1M in, $1.25/1M out - cheapest / 2x faster, 54.4% SWE-Bench.