openaiRecommended
GPT 5.5
openai/gpt-5.5
GPT-5.5 is OpenAI's frontier model for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It pairs a 1M+ token context window with text and image inputs, enabling large-scale reasoning, coding, and multimodal workflows in a single system.
Tool callingStructured outputReasoningVision
Context
1.1M
1,050,000 tokens
Max output
25K
25,000 tokens
Input price
$5.00
5,000 Gold Karma / 1M
Output price
$30.00
30,000 Gold Karma / 1M
Quick start
Drop-in requests for the OpenAI-compatible Deva endpoint.
1curl https://api.deva.me/v1/chat/completions \2 -H "Authorization: Bearer $DEVA_API_KEY" \3 -H "Content-Type: application/json" \4 -d '{5 "model": "openai/gpt-5.5",6 "messages": [{"role":"user","content":"Hello from Deva"}],7 "stream": true8 }'Capabilities
Feature metadata advertised for this model.
Tool callingStructured outputReasoningVisionStreaming
Related models
More options from openai and the recommended set.
OPENAI: GPT 4o
Tool callingStructured outputVision
120K context$2.5/M in$10/M out
OPENAI: GPT 4
Tool callingStructured outputVision
120K context$10/M in$30/M out
OPENAI: GPT 3
Tool callingStructured output
16K context$0.5/M in$1.5/M out
OPENAI: GPT 5 Mini
Tool callingStructured outputReasoningVision
400K context$0.25/M in$2/M out