Noometry

OpenAI, proprietary

GPT-5.6 Terra

GPT-5.6 Terra by OpenAI ranks 17th of 354 ranked models on the Noometry Index as of October 2026, with a score of 59.2. Its strongest category is multimodal, where it ranks 11th. API pricing starts at $2 per million input tokens and $12 per million output tokens, with a 1.05M-token context window.

Last verified

Noometry rank
#17 of 354
Index score
59.2
Evidence
Confirmed 52 results
Provider
OpenAI
Released
July 9, 2026
Weights
Proprietary
Reasoning
Yes
Context window
1.05M
Max output
128K
Input price
$2 / M
Output price
$12 / M
Blended price
$4.50 / M
Output speed
11 tokens/s Kagi
Value
#170 of 219
Knowledge cutoff
February 2026
Input
text, image, pdf

Category scores

Each category score combines every public result we have in that category.

  1. Coding 57.7
  2. Agentic & Tool Use 40.1
  3. Reasoning 60.7
  4. Math 81.6
  5. Knowledge 61.2
  6. Multimodal 47.3
  7. Multilingual 54.4
  8. Instruction Following 76.4
  9. Long Context 44.4
  10. Writing & Preference 70.2
CategoryScoreRankResults
Coding57.7#197
Agentic & Tool Use40.1#253
Reasoning60.7#2112
Math81.6#125
Knowledge61.2#303
Multimodal47.3#113
Multilingual54.4#441
Instruction Following76.4#401
Long Context44.4#681
Writing & Preference70.2#235

Strengths and weaknesses

Categories where GPT-5.6 Terra places highest and lowest among the models ranked in each, with its score against that category's median.

Strongest categories

CategoryScorevs medianRank
Math81.6+45.0#12 of 327, top 4%
Coding57.7+19.0#19 of 340, top 6%
Reasoning60.7+37.1#21 of 350, top 6%

Weakest categories

CategoryScorevs medianRank
Long Context44.4+3.5#68 of 296, top 23%
Agentic & Tool Use40.1+9.8#25 of 154, top 17%
Multilingual54.4+7.0#44 of 297, top 15%

Closest competitors

The models ranked just above and below GPT-5.6 Terra. When scores are this close, price and speed are often the better way to choose.

ModelRankScoreBlended $/MSpeed
Claude Opus 4.8#1360.7$1034Compare
Gemini 3.7 Flash#1459.8$1.50—Compare
Kimi K3#1559.5$6—Compare
GPT-5.4#1659.4$5.6312Compare
GPT-5.4 Pro#1858.9$67.50—Compare
Claude Opus 4.7#1958.3$1033Compare
Claude Opus 4.6#2058.2$1019Compare
Grok 4.6#2156.9$3—Compare

Sponsored placements are available on pages like this one. Advertise on Noometry

Benchmark results

Every published result we track, with its source. Bold rows are the ones used for ranking; where several exist we prefer independent runs over self-reported numbers.

Coding

BenchmarkScorePositionSettingSourceDate
DeepSWE53.8%highEpoch AI
DeepSWE24.1%lowEpoch AI
DeepSWE69.6%#7 of 29, top 25%maxEpoch AI
DeepSWE35.1%mediumEpoch AI
DeepSWE60.2%xhighEpoch AI
FrontierCode41.3%#19 of 37, top 52%Epoch AI
CursorBench30.7%highEpoch AI
CursorBench25.2%lowEpoch AI
CursorBench41.3%#10 of 14, top 72%maxEpoch AI
CursorBench27.6%mediumEpoch AI
CursorBench33.6%xhighEpoch AI
LMArena WebDev1522#41 of 113, top 37%LMArena2026-10-08
SciCode50.1%highEpoch AI
SciCode49.2%lowEpoch AI
SciCode55%#25 of 121, top 21%maxEpoch AI
SciCode49.7%mediumEpoch AI
SciCode44.6%noneEpoch AI
SciCode51.6%xhighEpoch AI
WeirdML78.3%#11 of 119, top 10%highEpoch AI
LMArena Coding1484#40 of 294, top 14%xhighLMArena2026-10-08
ALE-Bench1,951#8 of 105, top 8%maxEpoch AI

Agentic & Tool Use

BenchmarkScorePositionSettingSourceDate
APEX-Agents58.2%#14 of 49, top 29%maxEpoch AI
BALROG53.2%#6 of 35, top 18%maxEpoch AI
GDP.pdf24.7%#10 of 36, top 28%Epoch AI
GDP.pdf24.7%mediumEpoch AI
Vending-Bench 27,343#14 of 60, top 24%Epoch AI

Reasoning

BenchmarkScorePositionSettingSourceDate
ARC-AGI-267.1%highEpoch AI
ARC-AGI-218.8%lowEpoch AI
ARC-AGI-283.9%#14 of 83, top 17%maxEpoch AI
ARC-AGI-237.5%mediumEpoch AI
ARC-AGI-274.2%xhighEpoch AI
SimpleBench48.9%#41 of 77, top 54%Epoch AI
SimpleBench48.9%xhighEpoch AI
Kagi LLM Benchmark51.3%#62 of 99, top 63%Kagi LLM Benchmark
NYT Connections (extended)78.4%#39 of 91, top 43%high reasoningLech Mazur benchmarks
ARC-AGI-192%highEpoch AI
ARC-AGI-160.2%lowEpoch AI
ARC-AGI-196.5%#11 of 83, top 14%maxEpoch AI
ARC-AGI-177%mediumEpoch AI
ARC-AGI-194%xhighEpoch AI
CritPt22.9%highEpoch AI
CritPt9.4%lowEpoch AI
CritPt30%#10 of 134, top 8%maxEpoch AI
CritPt17.4%mediumEpoch AI
CritPt2%noneEpoch AI
CritPt27.1%xhighEpoch AI
Chess Puzzles22%lowEpoch AI2026-08-07
Chess Puzzles54%#9 of 129, top 7%maxEpoch AI2026-07-09
Chess Puzzles5%noneEpoch AI2026-08-07
LMArena Hard Prompts1468#39 of 297, top 14%xhighLMArena2026-10-08
Mystery Game Puzzles19%lowEpoch AI2026-08-27
Mystery Game Puzzles35%#19 of 74, top 26%maxEpoch AI2026-07-28
Mystery Game Puzzles10%mediumEpoch AI2026-08-28
Mystery Game Puzzles14%noneEpoch AI2026-08-27
DTBench91.2%highEpoch AI
DTBench90.1%lowEpoch AI
DTBench93.3%#26 of 151, top 18%maxEpoch AI
DTBench90.1%mediumEpoch AI
DTBench78.7%noneEpoch AI
DTBench92.5%xhighEpoch AI
LMCA51.4%highEpoch AI
LMCA49.3%lowEpoch AI
LMCA55%#11 of 125, top 9%maxEpoch AI
LMCA49.6%mediumEpoch AI
LMCA46.5%noneEpoch AI
LMCA52.2%xhighEpoch AI
Surface Evolver Bench83.8%#6 of 25, top 24%xhighEpoch AI
Epoch Capabilities Index159.62#11 of 213, top 6%Epoch AI2026-07-09

Math

BenchmarkScorePositionSettingSourceDate
FrontierMath (Tiers 1-3)86%#10 of 81, top 13%maxEpoch AI2026-07-09
FrontierMath Tier 470.7%#13 of 63, top 21%maxEpoch AI2026-07-09
OTIS Mock AIME 2024-202588.9%lowEpoch AI2026-08-07
OTIS Mock AIME 2024-202599.7%#12 of 173, top 7%maxEpoch AI2026-07-09
OTIS Mock AIME 2024-202553.3%noneEpoch AI2026-08-07
ProofBench74%#14 of 77, top 19%xhighEpoch AI
LMArena Math1466#45 of 285, top 16%xhighLMArena2026-10-08

Knowledge

BenchmarkScorePositionSettingSourceDate
GPQA Diamond87.4%lowEpoch AI2026-08-07
GPQA Diamond93.3%#16 of 186, top 9%maxEpoch AI2026-07-09
GPQA Diamond77.3%noneEpoch AI2026-08-07
SimpleQA Verified43.2%#38 of 77, top 50%maxEpoch AI2026-08-10
LMArena Expert1492#28 of 273, top 11%xhighLMArena2026-10-08

Multimodal

BenchmarkScorePositionSettingSourceDate
LMArena Vision1271#36 of 122, top 30%xhighLMArena2026-10-09
Blueprint-Bench 230.8%#15 of 31, top 49%Epoch AI
Furniture Assembly54.2%#9 of 31, top 30%maxEpoch AI2026-09-10
LMArena Document1472#10 of 38, top 27%xhighLMArena2026-09-13

Multilingual

BenchmarkScorePositionSettingSourceDate
LMArena Non-English1439#44 of 297, top 15%xhighLMArena2026-10-08
LMArena Chinese1513#31 of 285, top 11%xhighLMArena2026-10-08
LMArena French1471#39 of 223, top 18%xhighLMArena2026-10-08
LMArena German1460#35 of 231, top 16%xhighLMArena2026-10-08
LMArena Japanese1457#21 of 211, top 10%xhighLMArena2026-10-08
LMArena Korean1425#33 of 213, top 16%xhighLMArena2026-10-08
LMArena Russian1450#43 of 283, top 16%xhighLMArena2026-10-08
LMArena Spanish1448#53 of 226, top 24%xhighLMArena2026-10-08

Instruction Following

BenchmarkScorePositionSettingSourceDate
LMArena Instruction Following1454#38 of 298, top 13%xhighLMArena2026-10-08

Long Context

BenchmarkScorePositionSettingSourceDate
LMArena Longer Query1451#51 of 291, top 18%xhighLMArena2026-10-08

Writing & Preference

BenchmarkScorePositionSettingSourceDate
LMArena Text1447#49 of 297, top 17%xhighLMArena2026-10-08
LMArena Creative Writing1410#65 of 295, top 23%xhighLMArena2026-10-08
EQ-Bench Creative Writing1855#15 of 115, top 14%EQ-Bench
EQ-Bench 41234#11 of 28, top 40%EQ-Bench
LMArena Multi-Turn1449#55 of 295, top 19%xhighLMArena2026-10-08

API pricing by provider

RouteInput $/MOutput $/MCached input $/MChecked
azure$2$12$0.202026-10-10
bedrock$2$12$0.202026-10-10
openai$2$12$0.202026-10-10
openrouter$2$12$0.202026-10-10

All OpenAI API prices → Estimate your cost →

Compare GPT-5.6 Terra

Other OpenAI models

Frequently asked questions

How good is GPT-5.6 Terra?

GPT-5.6 Terra by OpenAI ranks 17th of 354 ranked models on the Noometry Index as of October 2026, with a score of 59.2. Its strongest category is multimodal, where it ranks 11th. API pricing starts at $2 per million input tokens and $12 per million output tokens, with a 1.05M-token context window.

How much does GPT-5.6 Terra cost?

GPT-5.6 Terra costs $2 per million input tokens and $12 per million output tokens on OpenAI's own API, with cached input at $0.20.

What is GPT-5.6 Terra's context window?

GPT-5.6 Terra accepts up to 1.05M tokens of input and can write up to 128K tokens in one response.

Is GPT-5.6 Terra open source?

No. GPT-5.6 Terra is proprietary and available only through OpenAI's API and partner platforms.

How fast is GPT-5.6 Terra?

GPT-5.6 Terra generated about 11 output tokens per second in the Kagi LLM Benchmark's timed runs. Speed varies by provider, load and reasoning effort.

What are GPT-5.6 Terra's strengths and weaknesses?

Relative to other ranked models, GPT-5.6 Terra places best in math, coding, reasoning and lowest in long context, agentic & tool use, multilingual.

What is GPT-5.6 Terra best at?

Its best category is multimodal, where it ranks 11th on Noometry.