Monday, August 3, 2026 · No. 372Prices synced 4 hours ago
All·AI·Model

The AI Model Price Index

GPT-5.5 Pro

by Impossibl · family gpt-pro · listed Apr 2026RTV

Highest-accuracy GPT-5.5 tier for slower, precision-heavy reasoning and coding

Current rates USD per 1M tokens

Input$30.00
Output$180
Cache read$3.00
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
DeepSeek V4 FlashDeepSeek V4 Flash: $0.14 per 1M tokens$0.14Gemini 3.5 Flash LiteGemini 3.5 Flash Lite: $0.30 per 1M tokens$0.30Qwen3.7 PlusQwen3.7 Plus: $0.50 per 1M tokens$0.50Mistral Medium (latest)Mistral Medium (latest): $1.50 per 1M tokens$1.50Grok 4.5Grok 4.5: $2.00 per 1M tokens$2.00Claude Opus 5Claude Opus 5: $5.00 per 1M tokens$5.00GPT-5.6 SolGPT-5.6 Sol: $5.00 per 1M tokens$5.00GPT-5.5 ProGPT-5.5 Pro: $30.00 per 1M tokens$30.00
Output price vs. maker flagships ($/1M tokens)
DeepSeek V4 FlashDeepSeek V4 Flash: $0.28 per 1M tokens$0.28Gemini 3.5 Flash LiteGemini 3.5 Flash Lite: $2.50 per 1M tokens$2.50Qwen3.7 PlusQwen3.7 Plus: $3.00 per 1M tokens$3.00Grok 4.5Grok 4.5: $6.00 per 1M tokens$6.00Mistral Medium (latest)Mistral Medium (latest): $7.50 per 1M tokens$7.50Claude Opus 5Claude Opus 5: $25.00 per 1M tokens$25.00GPT-5.6 SolGPT-5.6 Sol: $30.00 per 1M tokens$30.00GPT-5.5 ProGPT-5.5 Pro: $180 per 1M tokens$180

On the record

Model id
openai/gpt-5.5-pro
Context window
1.1M tokens
Max output
128K tokens
Input modalities
text, image, pdf
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
Dec 2025
Released
2026-04-23
Last updated
2026-04-23
Provider docs
impossibl.com/docs/models

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