OpenAI Released August 7, 2025 Synced Apr 7, 2026

OpenAI: GPT-5 Nano

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger...

Tool useVisionReasoning

Why it stands out

400K-token context window handles longer documents and multi-turn conversations without truncation.

Combines tool use with reasoning — a strong baseline for agentic and multi-step workflows.

Multimodal input (vision) extends it beyond text-only workflows.

$0.05/M input makes it practical for always-on agents, batch processing, or high-volume classification.

What to watch

No benchmark score currently tracked — evaluate using task-specific testing alongside pricing and capability data.

Release timeline

Tracked events for OpenAI: GPT-5 Nano.

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release

OpenAI: GPT-5 Nano entered the tracked catalog

August 7, 2025

GPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments. While limited in reasoning depth compared to its larger counterparts, it retains key instruction-following and safety features. It is the successor to GPT-4.1-nano and offers a lightweight option for cost-sensitive or real-time applications.

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Recent changes

LaunchAug 7

OpenAI launched OpenAI: GPT-5 Nano

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