Last refreshed 2026-06-15. Next refresh: weekly.
Why use GPT-5.4 Pro on OpenRouter?
OpenRouter offers GPT-5.4 Pro with pay-as-you-go pricing at $30.00/1M 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 Pro 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-proopenai/gpt-5.4-proRequest example
openai/gpt-5.4-pro.Gotchas
- Use provider model ID "openai/gpt-5.4-pro", not the LLMReference slug "gpt-5.4-pro".
Compare GPT-5.4 Pro Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenRouter | $30.00 | $180.00 |
| OpenAI API | $30.00 | $180.00 |
| Vercel AI Gateway | $30.00 | $180.00 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $30.00 |
| Output tokens | $180.00 |
Capabilities
About GPT-5.4 Pro
Premium extended-reasoning GPT-5.4 variant producing smarter and more precise responses. Replacement for o3-deep-research and o4-mini-deep-research. No prompt caching discount.
FAQ
What does GPT-5.4 Pro cost on OpenRouter?
On OpenRouter, GPT-5.4 Pro costs $30 per 1M input tokens and $180 per 1M output tokens.
What is the context window for GPT-5.4 Pro on OpenRouter?
GPT-5.4 Pro supports a 1.05m token context window on OpenRouter.
How does OpenRouter compare to other GPT-5.4 Pro providers?
GPT-5.4 Pro is available from 3 providers. The cheapest input pricing is $30/1M tokens from OpenRouter.
What API model ID do I use for GPT-5.4 Pro on OpenRouter?
Use the model ID openai/gpt-5.4-pro when calling OpenRouter's API.
Who created GPT-5.4 Pro?
GPT-5.4 Pro was created by OpenAI as part of the GPT-5.4 model family.
Is GPT-5.4 Pro open source?
GPT-5.4 Pro is not open source; the seed data lists it as proprietary.