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GPT-5.5 Pro

OPENAI Developer Architecture Profile

OpenRouter ↗HuggingFace ↗
Intelligence (ELO)1508Chatbot Arena Verified
Max Context1,050,000Tokens
API Cost / 1M$210.00Blended Prompt + Completion

Model Capabilities

  • Coding & Logic
  • Fictional
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...

Granular Pricing Matrix

Input Tokens (Prompt)$30.00 / 1M
Output Tokens (Completion)$180.00 / 1M

Pricing data via OpenRouter. Sync: 4/24/2026

Evaluate Competitors

VS Engine MatchupGPT-5.5 Pro vs OpenAI: GPT-5.4 ProVS Engine MatchupGPT-5.5 Pro vs OpenAI: GPT-5.2 ProVS Engine MatchupGPT-5.5 Pro vs Google: Gemini 2.5 Flash Lite Preview 09-2025VS Engine MatchupGPT-5.5 Pro vs OpenAI: GPT-4o AudioVS Engine MatchupGPT-5.5 Pro vs Google: Gemini 2.5 Flash LiteVS Engine MatchupGPT-5.5 Pro vs OpenAI: GPT-4 Turbo