GPT-5.4 is OpenAI’s frontier model that merges the Codex and GPT families into one system. It has a 1M+ token context window (922K input, 128K output) and accepts text and image input, for high-context reasoning, coding, and multimodal analysis in one workflow. It improves coding, document understanding, tool use, and instruction following. It is built as a default for both general tasks and software engineering: it can write production-ready code, combine information from multiple sources, and handle complex multi-step workflows with fewer iterations and better token efficiency.
$0.625market price $1.25
$0.0625market price $0.125
$3.75market price $7.50
Throughput is how fast the model writes (tokens per second, higher is better). Time to first token is how long before the answer starts (lower is better).
Share of requests served without a server error. Client errors (4xx) do not count.
Works with the OpenAI SDK pointed at our base URL. Every parameter is in the API reference.
Tokens processed per day on NagaAI.
GPT-5.4 is OpenAI’s frontier model that merges the Codex and GPT families into one system. It has a 1M+ token context window (922K input, 128K output) and accepts text and image input, for high-context reasoning, coding, and multimodal analysis in one workflow.
On NagaAI, GPT 5.4 costs $0.625 per 1M input tokens and $3.75 per 1M output tokens. You pay only for what you use, with no subscription.
GPT 5.4 reads up to 1.1M tokens in one request, counting the prompt and the answer together.
Yes. GPT 5.4 can call your functions as tools and can answer in a JSON schema you give it.
It takes text, images and files as input and returns text.
Create an API key, copy the model ID from the top of this page and send requests with the OpenAI or Anthropic SDK pointed at NagaAI. The API section on this page has a ready example.
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