GPT-5.6 Terra

Name: GPT-5.6 Terra
Price: 2.5 USD
Author: OpenAI

GPT-5.6vTerraCurrent

OpenAI(ai lab)

Released July 9, 2026

API Docs

OpenTools Scorenormalized /100

7.9

Valuescore / $M

OpenTools Score

Context1.1M tokens

Price (In / Out)$2.50/M / $15.00/M

CategoryLarge Language Model

Max Output128K tokens

About GPT-5.6 Terra

GPT-5.6 Terra is OpenAI balanced GPT-5.6 model for teams that need strong reasoning and agentic performance at lower cost than Sol. OpenAI model docs list a 1.05M token context window, 128K max output, and support for functions, web search, file search, and computer use.

Capabilities

textvisionreasoningcodingtool useweb searchfile searchcomputer useagents

Input Modalities

textimage

Output Modalities

text

Technical Details

API Identifier: gpt-5.6-terra
Category: Large Language Model
Context Window: 1,050,000 tokens
Max Output Tokens: 128,000 tokens

Benchmarks

Performance scores for GPT-5.6 Terra across standard benchmarks.

Artificial Analysis Intelligence IndexArtificial Analysis · Jul 2026

55%

Artificial Analysis Coding Agent IndexArtificial Analysis · Jul 2026

77.4%

Pricing

Token pricing for GPT-5.6 Terra API usage.

Input Tokens

$2.50/M

per million tokens

Output Tokens

$15.00/M

per million tokens

Pricing Calculator

Input tokens/month

Output tokens/month

Input cost$2.50

Output cost$7.50

Estimated monthly cost$10.00

OpenAI pricing page lists $2.50 input and $15 output per 1M tokens, with GPT-5.6 cache-write and cache-read pricing.

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Creating safe AGI that benefits all of humanity

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GPT-5.6 SolCurrent	1.1M	$5.00 / $30.00	textvisionreasoningcoding+5
GPT-5.6 LunaCurrent	1.1M	$1.00 / $6.00	textvisionreasoningcoding+5
GPT-5.5 ProCurrent	1.1M	$30.00 / $180.00	textvisioncodetool use+2
GPT-5.5Current	1.1M	$5.00 / $30.00	textvisioncodetool use+3
GPT-5.4 MiniCurrent	400K	$0.75 / $4.50	textvisioncode
GPT-5.4 NanoCurrent	400K	$0.20 / $1.25	textvisioncode