GPT-5.5 Pro by LLM Gateway | AI model information

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GPT-5.5 Pro by LLM Gateway | AI model information

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Model details

GPT-5.5 Pro

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LLM Gatewaygpt-5.5-progpt-pro

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Quick Info

Provider: LLM Gateway
Model key: gpt-5.5-pro
Release date: Apr 23, 2026
Last updated

Cost

Input token cost: $30.00
Output token cost: $180.00

Limits

Input tokens: 922,000 tokens
Output tokens

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Apr 23, 2026

Knowledge cutoff

2025-12-01

Input modalities

Output modalities

Capabilities

128,000 tokens

Context window

1,050,000 tokens