OpenAIPaid

GPT-5.5 Pro

GPT-5.5 Pro is OpenAI’s high-capability model optimized for deep reasoning and accuracy on complex, high-stakes workloads. It features a 1M+ token context window (922K input, 128K output) with support for...

openai/gpt-5.5-pro
💬 Chat with GPT-5.5 Pro

Capabilities

🧠Reasoning👁️Vision🔧Tools🧩Structured📜Long context

Specifications

Context window
1.1M tokens
Input price
$30.00/M
Output price
$180.00/M
Provider
OpenAI
Input modalities
file, image, text
Output modalities
text
Pricing
Pay-per-token
Model ID
openai/gpt-5.5-pro

Strengths

  • +Strong step-by-step reasoning
  • +Understands images (vision input)
  • +Supports tool / function calling
  • +Large 1.1M-token context window

Considerations

  • Higher cost per token

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