GPT-5.6 Terra (batch)
OPENAI Developer Architecture Profile
Intelligence (ELO)1485Chatbot Arena Verified
Max Context Limit1,050,000Max Out: 128,000 tokens
Prompt Caching90% OFF$0.10 / 1M cached
Standard API / 1M$7.00🧠 Deep Reasoner
Model Capabilities & Contract SLAs
- Coding & Logic
- Fictional
- Reasoning
- Agentic
- 📋 Strict JSON Schema
- 🛠️ Native Tool Calling
- 🧠 Extended Test-Time Reasoning
GPT-5.6 Terra is a balanced model in OpenAI's GPT-5.6 series, positioned between the flagship Sol tier and the cost-efficient Luna tier. It is suited for everyday coding, reasoning, and agentic...
Granular Pricing Matrix
Input Tokens (Standard Prompt)$1.00 / 1M
⚡ Cached Input (Prompt Cache Read)90% OFF$0.10 / 1M
Output Tokens (Completion)$6.00 / 1M
Pricing data via OpenRouter. Sync: 10/2/2026
Evaluate Competitors
VS Engine MatchupGPT-5.6 Terra (batch) vs Anthropic: Claude Opus 4.7VS Engine MatchupGPT-5.6 Terra (batch) vs OpenAI: GPT-5.4 NanoVS Engine MatchupGPT-5.6 Terra (batch) vs Nous: Hermes 4 405BVS Engine MatchupGPT-5.6 Terra (batch) vs OpenAI: o3 (batch)VS Engine MatchupGPT-5.6 Terra (batch) vs Anthropic: Claude Opus 4.8VS Engine MatchupGPT-5.6 Terra (batch) vs Google: Nano Banana Pro (Gemini 3 Pro Image Preview)