GPT 5 nano specs, prices, where it runs and its benchmark standing

Name: GPT 5 nano
Author: OpenAI

closed weights · top 10 on 0 of 3 · released Aug 7, 2025

Provider: OpenAI
Release date: Aug 7, 2025; Boards
Parameters: Not disclosed by OpenAI
Modalities: Text, Image, Files to Text; OpenRouter
License: Proprietary; Boards
Context window: 400K tokens; Pricing
Pricing: $0.05 in / $0.4 out per 1M tokens; All prices
Hosting: 4 priced API routes · Azure OpenAI (26 regions) · OpenRouter; Pricing Regions
Weights: Closed weights
Benchmarks: 3 boards captured

Rank	Board	Category	Score	Of
71	ARC-AGI-2Reasoning · as “GPT-5 Nano (High)”	Reasoning	2.6%	92
21	BFCLAgents and tools · stale since 2026-04-12 · as “GPT-5-nano-2025-08-07 (FC)”	Agents and tools	51.5%	81
31	SWE-bench VerifiedCoding · stale since 2026-02-26 · as “GPT 5 nano (2025-08-07) (medium)”	Coding	34.8%	39

Versions and release history

3 versions in this line since Apr 14, 2025, from Pricing, OpenRouter and the boards.

Category ranks, more models and catalog changes