Last refreshed 2026-05-11. Next refresh: weekly.
Why use GPT-5.4 Mini on OpenRouter?
OpenRouter offers GPT-5.4 Mini with pay-as-you-go pricing at $0.75/1M 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-5.4 Mini across 3 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-5.4-miniopenai/gpt-5.4-miniRequest example
openai/gpt-5.4-mini.Gotchas
- Use provider model ID "openai/gpt-5.4-mini", not the LLMReference slug "gpt-5.4-mini".
Compare GPT-5.4 Mini Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $0.75 | $4.50 |
| OpenRouter | $0.75 | $4.50 |
| Vercel AI Gateway | $0.75 | $4.50 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $0.75 |
| Output tokens | $4.50 |
Capabilities
About GPT-5.4 Mini
GPT-5.4 Mini is a smaller, cost-efficient variant of GPT-5.4 with a 400K token context window. Designed for tasks requiring long-context processing at lower cost. Model ID: gpt-5.4-mini.
FAQ
What does GPT-5.4 Mini cost on OpenRouter?
On OpenRouter, GPT-5.4 Mini costs $0.75 per 1M input tokens and $4.5 per 1M output tokens.
What is the context window for GPT-5.4 Mini on OpenRouter?
GPT-5.4 Mini supports a 400k token context window on OpenRouter.
How does OpenRouter compare to other GPT-5.4 Mini providers?
GPT-5.4 Mini is available from 3 providers. The cheapest input pricing is $0.75/1M tokens from OpenAI API.
What API model ID do I use for GPT-5.4 Mini on OpenRouter?
Use the model ID openai/gpt-5.4-mini when calling OpenRouter's API.
Who created GPT-5.4 Mini?
GPT-5.4 Mini was created by OpenAI as part of the GPT-5.4 model family.
Is GPT-5.4 Mini open source?
GPT-5.4 Mini is not open source; the seed data lists it as proprietary.