Last refreshed 2026-05-11. Next refresh: weekly.
Why use GPT-4.1 Nano on OpenRouter?
OpenRouter offers GPT-4.1 Nano with pay-as-you-go pricing at $0.10/1M 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-4.1 Nano across 4 providers to find the best fit for your use caseSetup recipe
Docs fallbackUse the provider REST API or SDKCreate a provider API keymodel: openai/gpt-4.1-nanoopenai/gpt-4.1-nanoRequest example
openai/gpt-4.1-nano.Gotchas
- Use provider model ID "openai/gpt-4.1-nano", not the LLMReference slug "gpt-4.1-nano".
Compare GPT-4.1 Nano Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| Replicate API | $0.10 | $0.40 |
| OpenRouter | $0.10 | $0.40 |
| OpenAI API | $0.10 | $0.40 |
| Vercel AI Gateway | $0.10 | $0.40 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.10 |
| Output tokens | $0.40 |
Capabilities
About GPT-4.1 Nano
Fastest and most cost-effective GPT-4.1 variant from OpenAI. Released April 2025 alongside GPT-4.1 and GPT-4.1 Mini. 1 million token context window optimized for high-volume applications.
FAQ
What does GPT-4.1 Nano cost on OpenRouter?
On OpenRouter, GPT-4.1 Nano costs $0.1 per 1M input tokens and $0.4 per 1M output tokens.
What is the context window for GPT-4.1 Nano on OpenRouter?
GPT-4.1 Nano supports a 1.05m token context window on OpenRouter.
How does OpenRouter compare to other GPT-4.1 Nano providers?
GPT-4.1 Nano is available from 4 providers. The cheapest input pricing is $0.1/1M tokens from Replicate API.
What API model ID do I use for GPT-4.1 Nano on OpenRouter?
Use the model ID openai/gpt-4.1-nano when calling OpenRouter's API.
Who created GPT-4.1 Nano?
GPT-4.1 Nano was created by OpenAI as part of the GPT-4.1 model family.
Is GPT-4.1 Nano open source?
GPT-4.1 Nano is not open source; the seed data lists it as proprietary.