GPT-5.5 Pro

by OpenAI · gpt-pro family · released 2026-04-23

On output pricing, GPT-5.5 Pro is cheaper than 5 of the 588 priced models tracked here, at $180/Mtok. Its 1,050,000-token context window is larger than 661 of 674 models. Capabilities: vision, tools, reasoning, structured output.

Specifications

ProviderOpenAI
Familygpt-pro
Input price$30/Mtok
Output price$180/Mtok
Context window1,050,000
Max output tokens128,000
Input modalitiestext, image, pdf
Output modalitiestext
Capabilitiesvision, tools, reasoning, structured output
Knowledge cutoff2025-12-01
Released2026-04-23

Estimate GPT-5.5 Pro costs for your workload →

Similar models

GPT-5.4 Pro
OpenAI · $180/Mtok out · 1.1M context
GPT-5.2 Pro
OpenAI · $168/Mtok out · 400K context
GPT-5 Pro
OpenAI · $120/Mtok out · 400K context
GPT-5.5
OpenAI · $30/Mtok out · 1.1M context

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OpenAI documentation → ← All AI models

Data synced daily from models.dev (last synced 14 hours ago). Always verify pricing with OpenAI before deploying to production.