GPT-5.4 Mini API via TokenMix
Use GPT-5.4 Mini from OpenAI as a chat model through the TokenMix AI API relay and multi-model gateway.
GPT-5.4 Mini is OpenAI's strongest mini model for coding, computer use, and subagent workflows. It features 400K context, 128K max output, and runs 2x faster than GPT-5 Mini.
API access
- Base URL:
https://api.tokenmix.ai/v1 - Model ID:
gpt-5.4-mini - OpenAI SDK compatible. Change the base URL and use your TokenMix API key.
Pricing
Input $0.7275/M tokens, output $4.365/M tokens
Capabilities
Vision, Function calling, JSON mode, Streaming, Reasoning
Model specs
- Context: 400K tokens
- Max output: 128K tokens
Availability
2/2 available API endpoints are healthy right now.
Recent performance
TTFT 948ms, latency 1453ms, throughput 107.1 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.