OpenAI

GPT-5.5

openai/gpt-5.5

JSON

Specification

Published by the vendor; the platform bills at the target's declared price.

GPT-5.5

reasoning tools

OpenAI openai/gpt-5.5

GPT-5.5 is OpenAI’s frontier model designed for complex professional workloads, building on GPT-5.4 with stronger reasoning, higher reliability, and improved token efficiency on hard tasks. It features a 1M+ token...

Input $/1M: $5.00
Output $/1M: $30.0
Context: 1.1M
Max output: 128K
Released: Apr 24, 2026
Modalities: fileimagetext

Intelligence index-

Coding index75

Agentic index38

Cached input reads $0.50 per 1M

On this deployment

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Not routable here yet

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targets.yamlyaml

# targets.yaml - declare a target that runs GPT-5.5
targets:
  - id: gpt-5-5
    kind: llm
    name: GPT-5.5
    metadata:
      model: openai/gpt-5.5          # links the target to this catalogue entry
    capabilities:
      domains: [general]
      supports_tools: true
      context_window: 1050000
    cost:
      usd_per_1k_tokens: 0.017500

Price among OpenAI models

Input list price per million tokens; GPT-5.5 is the 9th cheapest of 13 listed.

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