GPT-5.5 Pro (batch)

OPENAI Developer Architecture Profile

OpenRouter ↗HuggingFace ↗

Intelligence (ELO)1494Chatbot Arena Verified

Max Context Limit1,050,000Max Out: 128,000 tokens

Prompt CachingStandardNo Cache Discount

Standard API / 1M$105.00🧠 Deep Reasoner

Model Capabilities & Contract SLAs

Coding & Logic
Fictional
Reasoning
Agentic
📋 Strict JSON Schema
🛠️ Native Tool Calling
🧠 Extended Test-Time Reasoning

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 (Standard Prompt)$15.00 / 1M

Output Tokens (Completion)$90.00 / 1M

Pricing data via OpenRouter. Sync: 10/2/2026

Evaluate Competitors

VS Engine MatchupGPT-5.5 Pro (batch) vs Google: Gemini 3.7 Flash VS Engine MatchupGPT-5.5 Pro (batch) vs Anthropic: Claude Opus 5 (batch)VS Engine MatchupGPT-5.5 Pro (batch) vs Google: Gemini 3.6 Flash VS Engine MatchupGPT-5.5 Pro (batch) vs Google: Gemini 3 Flash Preview (batch)VS Engine MatchupGPT-5.5 Pro (batch) vs Amazon: Nova Premier 1.0 VS Engine MatchupGPT-5.5 Pro (batch) vs Nous: Hermes 3 405B Instruct