Thursday, September 17, 2026 · No. 417Prices synced 19 hours ago
All·AI·Model

The AI Model Price Index

GPT-5.6 Terra

by Xpersona · family gpt-terra · listed Jul 2026RTV

Balanced GPT-5.6 model for capable, cost-efficient everyday work

Current rates USD per 1M tokens

Input$1.50
Output$2.00
Cache read$0.15
Cache write

Against the market

Input price vs. maker flagships ($/1M tokens)
DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.15 per 1M tokens$0.15Qwen3.8 FlashQwen3.8 Flash: $0.15 per 1M tokens$0.15Gemini 3.8 FlashGemini 3.8 Flash: $0.75 per 1M tokens$0.75GLM-5.2GLM-5.2: $1.40 per 1M tokens$1.40GPT-5.6 TerraGPT-5.6 Terra: $1.50 per 1M tokens$1.50Grok 4.6Grok 4.6: $2.00 per 1M tokens$2.00Claude Fable 5.1Claude Fable 5.1: $10.00 per 1M tokens$10.00GPT-6 AstraGPT-6 Astra: $10.00 per 1M tokens$10.00
Output price vs. maker flagships ($/1M tokens)
Qwen3.8 FlashQwen3.8 Flash: $0.47 per 1M tokens$0.47DeepSeek V4 Flash Vision ExpDeepSeek V4 Flash Vision Exp: $0.60 per 1M tokens$0.60GPT-5.6 TerraGPT-5.6 Terra: $2.00 per 1M tokens$2.00Gemini 3.8 FlashGemini 3.8 Flash: $3.75 per 1M tokens$3.75GLM-5.2GLM-5.2: $4.40 per 1M tokens$4.40Grok 4.6Grok 4.6: $6.00 per 1M tokens$6.00Claude Fable 5.1Claude Fable 5.1: $50.00 per 1M tokens$50.00GPT-6 AstraGPT-6 Astra: $50.00 per 1M tokens$50.00

On the record

Model id
gpt-5.6-terra
Context window
372K tokens
Max output
128K tokens
Input modalities
text, image
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
Feb 2026
Released
2026-07-09
Last updated
2026-07-09

Back of the envelope

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