Advertise here
#79

GPT-6.1 Terra

OpenAI Release: 2026-10-26 Tested on: 2026-10-26 22:24 openai/gpt-6.1-terra::none
~1T total (~60B active)MoEClosedEstimated
(max) (xhigh) (high) (medium) (low) (none)

Summary

GPT-6.1 Terra scores 8.6 on AI BENCHY and ranks #79. It has 10.0 reliability, a 84.1% pass rate, $0.184 total cost, and 4.08s average response time.

What makes GPT-6.1 Terra unique: It stands out most in Domain specific, where it ranks #1, while Combined is its weakest area at #15. Its total benchmark cost is unusually low for its score range. It is notably fast compared with similar models.

Model facts

Researched on 2026-10-26

Estimated
Parameters
~1T total (~60B active)
Architecture
MoE
Availability
Closed
License
-

Best estimate from public evidence; the vendor did not disclose every value. OpenAI does not disclose this checkpoint’s parameter counts or architecture. The low-confidence estimates carry forward the previous GPT-5.6 Terra catalog entry; the vendor announcement establishes identity and API availability, not those estimates.

Parameter source Availability source

Score

8.6

Consistency

9.3

Reliability

10.0

Total Cost (Current Price)

$0.184

Total Output Tokens

4,906

Total Input Tokens

159,129

Input Price

$1.000 / 1M

Output Price

$5.000 / 1M

Cache Read Price

$0.050 / 1M

Cache Write Price

$1.250 / 1M

Cache prices apply to input tokens. Reads reuse cached prompts; writes store them and can cost extra. Output tokens use the output price.

Tests Correct

Wrong Tests: 5

Attempt pass rate: 84.1%

Flaky tests

2

Flaky tests had mixed outcomes across runs (at least one pass and one fail).

Response Time (avg)

4.08s

Response Time (max): 40.32s

Response Time (total): 93.75s

Wrong answer: 5

Hamster playing table tennis

Prompt: Create a detailed SVG illustration of a hamster playing table tennis.

#79 GPT-6.1 Terra

none
Cost
$0.017
Time
36.8s
Tokens
3,297 tok

Charts

Choose the first model, then click a second model to open a side-by-side page.

Total Output Tokens

Score vs Total Output Tokens

Quick Compare

GPT-6.1 TerranonevsDeepSeek V4.1 FlashmaxGPT-6.1 TerranonevsMuse Spark 1.1lowGPT-6.1 TerranonevsGPT-6 SollowGPT-6.1 TerranonevsClaude Sonnet 5.5highGPT-6.1 TerranonevsSeed 2.1 TurbomediumGPT-6.1 TerranonevsClaude Haiku 5.5lowGPT-6.1 TerranonevsMiMo-V2.6-PromediumGPT-6.1 TerranonevsQwen3.8 Max (0902)lowGPT-6.1 TerranonevsQwen3.8 27BhighFree AvailableGPT-6.1 TerranonevsGrok 4.6high

Category Breakdown

Category Score Consistency Tests Correct
Agentic 10.0 10.0
Anti-AI Tricks 10.0 10.0
Coding 8.2 7.2
Combined 6.5 10.0
Data parsing and extraction 10.0 10.0
Domain specific 5.9 7.2
General Intelligence 10.0 10.0
Instructions following 10.0 10.0
Puzzle Solving 10.0 10.0
Tool Calling 10.0 10.0
Trivia 3.0 10.0

Compared models