GPT-5 nano
Model overview
gpt-5-nano
The fastest and most cost-efficient version of GPT-5.
general LLMreasoningcodingvision-languagechatenterprise access
Representative version
gpt-5-nano
| Company | OpenAI |
|---|---|
| Release | Not disclosed |
| Release type | Model release |
| Parameters | Not disclosed |
| Architecture | Not disclosed |
| Context | 400,000 (OpenRouter) |
| Input modalities | text / image |
| Output modalities | text |
| Tool use / function calling | Tool use: Not disclosed; Function calling: Not disclosed |
| Structured output / reasoning | Structured output: Not disclosed; Reasoning: Not disclosed |
| Vision / audio / video | Confirmed: Vision |
| Open weights / License | No open weights currently / weight license not disclosed openai-gpt-5-nano-current · License not applicable |
| Vendor API | Available All models | OpenAI APIopenai-gpt-5-nano-current · 2026-08-10 |
| OpenRouter | OpenRouter listed |
| Pricing | OpenRouter · 2026-08-11: $0.05 / $0.4 input / output, per 1M tokens |
| Benchmark | No reliable public source |
| Public signals | No reliable public source |
| Use cases | assistant chat / enterprise API / general text tasks / complex reasoning |
| Claim evidence | Release event / Model specificationsAll models | OpenAI APIgpt-5-nano · GPT-5 nano · gpt-5-nano OpenRouter context / capabilities / pricingOpenRouter public models APIopenai/gpt-5-nano · 2026-08-11T06:28:09.895Z |
OpenRouter
Pricing / context / availability
| OpenRouter | OpenRouter listed |
|---|---|
| OpenRouter listing | openai/gpt-5-nano |
| Mapped version | gpt-5-nano openai-gpt-5-nano-current |
| Pricing | OpenRouter · 2026-08-11: $0.05 / $0.4 input / output, per 1M tokens |
| Context | 400000 |
| Speed/Latency | No reliable public source |
| Snapshot time | 2026-08-11T06:28:09.895Z |
| Source | View source |
Missing public information
Public information not yet available
Parameter scale not disclosedRelease date not disclosedNo reliable benchmark sourceNo public model-card activity countersNo linkable model-specific reviewSpeed/latency not disclosed