Last refreshed 2026-06-15. Next refresh: weekly.
Why use GPT-5 Nano on OpenRouter?
OpenRouter offers GPT-5 Nano with pay-as-you-go pricing at $0.05/1M input tokens. OpenRouter is a multi-provider LLM aggregator offering unified API access to 300+ models from all major labs and emerging providers, with automatic failover for reliability.
Compare GPT-5 Nano across 4 providers to find the best fit for your use caseInput / 1M
$0.050
Output / 1M
$0.40
Cache
Not sourced
Batch
Not sourced
Setup recipe
Docs fallbackInstall
Use the provider REST API or SDKAuth
Create a provider API keyCall
model: openai/gpt-5-nanoModel ID
openai/gpt-5-nanoRequest example
Curated snippets for this provider are not sourced yet. Use OpenRouter documentation with model ID
openai/gpt-5-nano.Gotchas
- Use provider model ID "openai/gpt-5-nano", not the LLMReference slug "gpt-5-nano".
Compare GPT-5 Nano Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Replicate API | $0.05 | $0.40 |
| OpenRouter | $0.05 | $0.40 |
| OpenAI API | $0.05 | $0.40 |
| Vercel AI Gateway | $0.05 | $0.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.05 |
| Output tokens | $0.40 |
Capabilities
VisionMultimodalReasoningJSON / Tool useStructured OutputsCode ExecutionPrompt CachingBatch API
About GPT-5 Nano
Fastest, cheapest GPT-5 variant for summarization and classification tasks. Also available via Realtime API.
Get Started
Model Specs
Released2025-08-07
Context400k
ArchitectureDecoder Only
Knowledge cutoff2024-05