Gpt 5.6 Terra

proprietary

GPT-5.6 Terra is designed for workloads that balance intelligence and cost. It roughly corresponds to the mini model tier used in earlier GPT-5 families. Reasoning.effort supports: none, low, medium (default), high, xhigh, and max.

Intelligence
Reasoning
Speed
Context
1.1M
Max output
128K
Input price
$2/1M tokens
Output price
$12/1M tokens

Capabilities

Reasoning & Interaction
Reasoning
Tool Calling
Output Control
Structured Output
JSON Mode
Infrastructure
Streaming
Batch Processing

Details

Model IDopenai/gpt-5.6-terra
Provider Perplexity
Creator OpenAI
Familygpt-5.6
Licenseproprietary
Statusactive
Typechat
Input modalitiestext
Output modalitiestext
Open weightNo
Parameters—
Architecture—
Context window1.1M tokens
Max input922K tokens
Max output128K tokens
Reasoning tokensYes
Knowledge cutoff
Release date—
Sourceofficial

Pricing

Input
$2
Output
$12
Cache write
—
Cache read
$0.2
Batch in
—
Batch out
—

Input: 2.00 (≤272k) 4.00 (>272k); Output: 12.00 (≤272k) 18.00 (>272k) per 1M tokens.

Family Comparison: gpt-5.6

ModelContextMax outPricing
Gpt 5.6 Luna1.1M128K$0.2$1.2
Gpt 5.6 Terra1.1M128K$2$12
Gpt 5.6 Sol1.1M128K$4$20

API

GET/v1/models/perplexity/openai/gpt-5.6-terra

Gpt 5.6 Terra

openai/gpt-5.6-terra

GPT-5.6 Terra is designed for workloads that balance intelligence and cost. It roughly corresponds to the mini model tier used in earlier GPT-5 families. Reasoning.effort supports: none, low, medium (default), high, xhigh, and max.

Changes · 5 entries
openai/gpt-5.6-terracreateca7a400Nov 2, 2026, 03:02 AM
openai/gpt-5.6-terraupdateb2f45bfOct 29, 2026, 03:29 AM
nameopenai/gpt-5.6-terra→Gpt 5.6 Terra
pricing_notes["Input ranges $2 to $4, output ranges $12 to $18 per 1M ...→["Input: 2.00 (≤272k) 4.00 (>272k); Output: 12.00 (≤272k)...
openai/gpt-5.6-terraupdate0ed066aJul 31, 2026, 11:38 AM
pricinginput$2.5→$2output$15→$12cached input$0.25→$0.2
pricing_notes["Input ranges $2.5 to $5, output ranges $15 to $22.5 per...→["Input ranges $2 to $4, output ranges $12 to $18 per 1M ...
openai/gpt-5.6-terraupdatec67ed84Jul 31, 2026, 10:28 AM
pricinginput$2.5output$15cached input$0.25
pricing_notes["Input ranges $2.5 to $5, output ranges $15 to $22.5 per...
openai/gpt-5.6-terracreatebbbc783Jul 12, 2026, 07:45 AM