GPT-5.5
gpt-5.5
Context 1MMax out 128KReleased Apr 23, 2026Text chatVisionReasoningFunction callingWeb searchFile searchComputer use
Pricing
| Input · per 1M tokens | $5.00 |
| Output · per 1M tokens | $30.00 |
| Cache read · per 1M tokens | $0.50 |
Call it
Swap <YOUR_TTTTT_API_KEY> and the snippet runs as-is.
curl https://api.ttttt.ai/v1/chat/completions \ -H "Authorization: Bearer $TTTTT_API_KEY" \ -H "Content-Type: application/json" \ -d '{ "model": "gpt-5.5", "messages": [{ "role": "user", "content": "Hello!" }] }'