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GPT-5.6 Terra

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...

Input Price$2.50/1M tokens
Output Price$15.00/1M tokens
Intelligence55.0
Coding76.7

Specifications

Technical details and pricing.

ProviderOpenai
Context Window1,050,000 tokens
Release DateJul 9, 2026
ModalitiesText, Image β†’ Text
CapabilitiesFunction Calling, Vision
AvailabilityChat only

Benchmarks

7 benchmark scores from Artificial Analysis.

GPQA92.5%
HLE41.8%
SciCode53.9%
LCR74.0%
IFBench71.2%
Tau286.3%
TerminalBench Hard57.6%

Composite Indices

Higher is better; speed and price are normalized

Standard Benchmarks

Only benchmarks with data are shown

Frequently Asked Questions

What is GPT-5.6 Terra good for?

Use GPT-5.6 Terra for everyday tasks like writing, summarizing, brainstorming, and getting clear explanations.

How much does GPT-5.6 Terra cost?

Pricing is based on usage. Current rates are $2.50/1M tokens for input and $15.00/1M tokens for output.

Can I use GPT-5.6 Terra in LLMBase Chat?

Yes. Use the chat action on this page to open GPT-5.6 Terra in LLMBase Chat. Access still follows the current plan and model tier.

Does GPT-5.6 Terra support images or audio?

GPT-5.6 Terra can understand images.

Benchmarks and pricing use Artificial Analysis where available. Catalog specs are used as a fallback.