OpenAI: GPT-5.6 Terra.

See how OpenAI: GPT-5.6 Terra compares with other broadly useful AI models across quality, speed, price, context, and practical capabilities.

CompareVisit model

Quality

#5/75

55

Overall quality score

Speed

#65/75

—

Output tokens per second

Input price

#47/75

$1.00/1M

Per 1M tokens

Output price

#51/75

$6.00/1M

Per 1M tokens

Context

#2/75

1.1M

Content read at once

Comparison summary

OpenAI: GPT-5.6 Terra ranks #5 of 75 for overall quality and #65 for response speed in the current catalogue.

Its listed input price is $1.00/1M, output price is $6.00/1M, and it can work with up to 1.1M of context at once.

Its strongest areas in the current data are coding, everyday help, math and logic.

Practical specifications

Company
OpenAI
Reasoning
Yes
Open weights
No
Input
Text, Image
Output
Text
Context window
1.1M

OpenAI: GPT-5.6 Terra technical benchmarks.

Named evaluation records for technical comparison. Results retain their original benchmark names and sources.

BenchmarkAreaGPT-5.6 TerraSource
Intelligence IndexoverallQuality55OpenRouter / artificial-analysis
Coding Indexcoding76.7OpenRouter / artificial-analysis
Agentic Indexagentic47.4OpenRouter / artificial-analysis
GPQAGPQA Diamond92.5OpenRouter model benchmarks
Humanity's Last ExamHLE41.8OpenRouter model benchmarks
IFBenchIFBench71.2OpenRouter model benchmarks
τ²-Bench Telecomτ²-Bench Telecom86.3OpenRouter model benchmarks
AA-LCRAA-LCR74OpenRouter model benchmarks
GDPval-AAGDPval-AA54.1OpenRouter model benchmarks
CritPtCritPt30OpenRouter model benchmarks
SciCodeSciCode53.9OpenRouter model benchmarks
Terminal-Bench HardTerminal-Bench Hard57.6OpenRouter model benchmarks
AA-Omniscience AccuracyAA-Omniscience Accuracy45.9OpenRouter model benchmarks
AA-Omniscience Non-Hallucination RateAA-Omniscience Non-Hallucination Rate14.8OpenRouter model benchmarks

Quality benchmarks

See where OpenAI: GPT-5.6 Terra stands.

The darker bar marks OpenAI: GPT-5.6 Terra; the lighter bars provide context from other leading models.

Highlights

Quality

Overall capability · Higher is better

Speed

Output tokens per second · Higher is better

Input price

USD per 1M tokens · Lower is better