Back to Models

OpenAI: GPT-5.6 Terra Pro

Openaitext
9.6 / 10 Overall Rating

GPT-5.6 Terra Pro is OpenAI's extended-reasoning variant of the GPT-5.6 Terra model, utilizing Pro reasoning mode for high-complexity analytical and technical tasks. It pairs a 1.05M token context window with a 128K max output token capacity, competing directly against Claude 3.5 Sonnet and GPT-4o for complex multi-step reasoning.

Context Window
1050K
Knowledge Cutoff
2025
Max Output
16K
License
Proprietary

Where it Excels (Pros)

  • 1.05M token context window
  • 128K max output token ceiling
  • Enhanced reasoning for complex tasks

Limitations (Cons)

  • Higher latency in pro reasoning
  • Higher output cost than input

Benchmark Breakdown

Reasoning (MMLU)94%
Coding (HumanEval)92%
Mathematics (MATH)90%
Long-Context Retrieval95%

Pricing Matrix

Input cost / 1M tokens$2.00
Output cost / 1M tokens$12.00
Visit OpenAI: GPT-5.6 Terra Pro website↗

Compare OpenAI: GPT-5.6 Terra Pro with other frontier models:

vs Meta: Muse Spark 1.2 Contributor→vs DeepSeek: DeepSeek V4 Flash Vision Exp→vs Tencent: Hy-MT2-1.8B→

Related Skills, Tools & Automations

Tool
ChatGPT
Conversational AI
Tool
Claude
Conversational AI
Tool
Cursor
Coding
Tool
Perplexity AI
Research
AutomationMake
AI Customer Support Bot
Route customer inquiries to AI for instant responses, with human escalation for complex issues.
Automationn8n
Content Repurposer
Transform long-form articles into Twitter threads, LinkedIn posts, and newsletter snippets.