GPT-5.4 API via TokenMix
Use GPT-5.4 from OpenAI as a chat model through the TokenMix AI API relay and multi-model gateway.
GPT-5.4 is OpenAI's latest flagship model, unifying reasoning, coding, and agentic workflows. It features native computer-use capabilities, 1.05M context window, and configurable reasoning effort with 5 levels.
API access
- Base URL:
https://api.tokenmix.ai/v1 - Model ID:
gpt-5.4 - OpenAI SDK compatible. Change the base URL and use your TokenMix API key.
Pricing
Input $2.45/M tokens, output $14.7/M tokens
Capabilities
Vision, Function calling, JSON mode, Streaming, Reasoning
Model specs
- Context: 1050K tokens
- Max output: 128K tokens
Availability
3/3 available API endpoints are healthy right now.
Recent performance
TTFT 1687ms, latency 11266ms, throughput 71.3 tok/s.
Start using this model
Create an API key, top up from $1 when needed, and call this model through the TokenMix OpenAI-compatible endpoint.