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GPT-5.6 Terra

OpenAI · proprietary · gpt-5.6-terra

GPT-5.6 Terra is the balanced tier of OpenAI's GPT-5.6 family, designed for workloads that balance intelligence and cost. It delivers performance competitive with GPT-5.5 at roughly half the price, supports max reasoning effort, and has a 1.05M-token context window.

ConnectorsSearch and FGPQACapture-the-BrowseCompTerminal-Ben

Benchmark scores

BenchmarkScore
Connectors1.00
Search and Function-Calling0.95
GPQA0.93
Capture-the-Flag Challenges (Internal)0.92
BrowseComp0.88
Terminal-Bench 2.10.87
MMMU-Pro0.81
BenchCAD (with Python tool)0.78
DeepSWE 1.10.70

Pricing

  • OpenAI$2.00 / $12.00

Input / output per 1M tokens

AA metrics

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Arena Elo

  • No Arena snapshot linked.