Last refreshed 2026-06-15. Next refresh: weekly.
Why use GPT-5.4 on OpenRouter?
OpenRouter offers GPT-5.4 with pay-as-you-go pricing at $2.50/1M 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 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-5.4openai/gpt-5.4Request example
openai/gpt-5.4.Gotchas
- Use provider model ID "openai/gpt-5.4", not the LLMReference slug "gpt-5.4".
Compare GPT-5.4 Across Providers
| Provider | Input (per 1M) | Output (per 1M) |
|---|---|---|
| OpenAI API | $2.50 | $15.00 |
| OpenRouter | $2.50 | $15.00 |
| Vercel AI Gateway | $2.50 | $15.00 |
| AWS Bedrock | $2.75 | $16.50 |
Pricing
| Type | Price (per 1M) |
|---|---|
| Input tokens | $2.50 |
| Output tokens | $15.00 |
| Image input | $1.00 |
Capabilities
About GPT-5.4
GPT-5.4 is OpenAI's flagship frontier reasoning model, released March 5, 2026. It incorporates advances from GPT-5.3-Codex for coding and agentic workflows, and adds 'Thinking' mode with editable reasoning plans. Key capabilities include computer use (navigating interfaces via Playwright), image understanding and generation integration, full-stack web app generation, tool calling, and deep research. Knowledge cutoff is August 31, 2025. Model ID: gpt-5.4.