GPT-5.5 API via TokenMix
Use GPT-5.5 from OpenAI as a chat model through the TokenMix AI API relay and multi-model gateway.
GPT-5.5 is OpenAI's newest frontier model for complex professional work, with highest reasoning, 1.05M context, text/image input, tools, streaming, and structured outputs.
API access
- Base URL:
https://api.tokenmix.ai/v1 - Model ID:
gpt-5.5 - OpenAI SDK compatible. Change the base URL and use your TokenMix API key.
Pricing
Input $5/M tokens, output $30/M tokens
Capabilities
Vision, Function calling, JSON mode, Streaming, Reasoning
Model specs
- Context: 1050K tokens
- Max output: 128K tokens
Availability
1/1 available API endpoints are healthy right now.
Recent performance
TTFT 4323ms, latency 10520ms, throughput 198.4 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.