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GPT-5.5 Pro
gpt-pro
OpenCode Zen ·
gpt-5.5-pro
Capabilities
Tool Call
Yes
Reasoning
Yes
Structured Output
No
Temperature Control
No
Attachments
Yes
Open Weights
No
Modalities
Input
text
image
pdf
Output
text
Pricing (per 1M tokens)
Input
$30.00
Output
$180.00
Cache Read
$30.00
Install
Direct installation coming soon — March 2026
Provider Docs
Details
Provider
OpenCode Zen
Model ID
gpt-5.5-pro
Family
gpt-pro
Knowledge Cutoff
2025-12-01
Release Date
2026-04-24
Last Updated
2026-04-24
Limits
Context
1.1M
Max Input
922K
Max Output
128K
SDK
@ai-sdk/openai-compatible
GPT-5.5 Pro — Harmony Marketplace