OpenAI: GPT-5 Nano
Analysis Summary
GPT-5 Nano is the smallest model in OpenAI's GPT-5 line, trading capability for speed and cost. Its reasoning and agentic scores are modest, and it lacks a strong coding profile.
It suits simple classification, lightweight chat, or high-throughput tasks where cost per call matters more than depth of reasoning. It is not appropriate for complex agentic workflows or coding tasks given its weaker benchmark profile.
Very low pricing and a 400K context window make it useful as a cheap first-pass filter ahead of a stronger model for tasks that require deeper reasoning.
Assessed July 10, 2026
Editorial notes
GPT-5 Nano is a low-cost, vision-capable model from OpenAI with a 400K context window, but agentic and coding performance are limited.
Rankings consider pricing, capabilities, benchmarks, and real-world applicability and are refreshed as new models launch. Feedback?
DFO Verdict
GPT-5 Nano is a low-cost, vision-capable model from OpenAI with a 400K context window, but agentic and coding performance are limited.
How OpenAI: GPT-5 Nano compares
OpenAI: GPT-5 Nano ranks #274 of 393 AI models we track for overall intelligence, #158 of 300 for agentic tasks. Its 400K-token context window is larger than 83% of the models we list. At $0.05 per million input tokens it is cheaper than 74% of comparable models.
Dark bar = input Ā· light bar = output, scaled to the priciest peer.
1M tokens ā 8 full-length novels or ~2,500 pages of business documents in a single request.
Strongest on value. The pulled-in content corner is the trade-off, and if the shape matters more than the price, this is your model.
Compare shapes side-by-side āPricing
| Token Type | Cost per 1M tokens | Cost per 1K tokens |
|---|---|---|
| Input | $0.05 | $0.000050 |
| Output | $0.40 | $0.000400 |
What would OpenAI: GPT-5 Nano cost your business?
Pick the job that looks most like yours, then fine-tune with the sliders. Estimates update live.
A website chatbot handling around 100 customer conversations a day, a few short messages each.
Full calculator with 612 models ā Price Calculator
These numbers get smaller with the right architecture.
We route routine calls to cheap models and save OpenAI: GPT-5 Nano for the hard ones. Most clients cut their estimate by 60-80%.
Talk to our teamAbout 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..
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Frequently asked questions about OpenAI: GPT-5 Nano
How much does OpenAI: GPT-5 Nano cost?
OpenAI: GPT-5 Nano costs $0.05 per million input tokens and $0.40 per million output tokens.
What is the context window of OpenAI: GPT-5 Nano?
OpenAI: GPT-5 Nano has a context window of 400,000 tokens (400K).
What can OpenAI: GPT-5 Nano do?
OpenAI: GPT-5 Nano supports image/vision input, tool use, and function calling.
Who created OpenAI: GPT-5 Nano?
OpenAI: GPT-5 Nano is developed by OpenAI and was released on August 7, 2025.
