Model comparison

GPT-5.6 Terra vs Yi-34B

GPT-5.6 Terra is the stronger model overall, scoring 59.1 to 27.4 on the Noometry Index.

Last verified . 19 shared benchmarks.

GPT-5.6 Terra OpenAI

59.1

Rank #15 Confirmed

Yi-34B 01.AI

27.4

Rank #325 Confirmed

Summary

  • They share 19 benchmarks with published results for both. GPT-5.6 Terra scores higher in 8 categories and Yi-34B in 0 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in math, where GPT-5.6 Terra leads 81.5 to 19.8.
  • The biggest single-benchmark swing is GPQA Diamond: 93.3% for GPT-5.6 Terra and 14.7% for Yi-34B.
  • Yi-34B has downloadable open weights; the other is API-only.

Side by side

GPT-5.6 Terra and Yi-34B specifications
GPT-5.6 TerraYi-34B
ProviderOpenAI01.AI
Noometry Index59.127.4
Released2026-07-092023-11-02
WeightsProprietaryOpen
Context window1.05M—
Max output128K—
Input $ / M tokens$2—
Output $ / M tokens$12—
Results tracked5223

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Category by category

Coding GPT-5.6 Terra leads

GPT-5.6 Terra: 57.1 (#16), Yi-34B: 31.8 (#269)

Coding benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Coding14841112
DeepSWE69.6%—
FrontierCode41.3%—
CursorBench41.3%—
LMArena WebDev1520—
SciCode55%—
WeirdML78.3%—
ALE-Bench1,951—

Agentic & Tool Use Not comparable

GPT-5.6 Terra: 40.2 (#23), Yi-34B: —

Agentic & Tool Use benchmarks
BenchmarkGPT-5.6 TerraYi-34B
APEX-Agents58.2%—
BALROG53.2%—
GDP.pdf24.7%—
Vending-Bench 27,343—

Reasoning GPT-5.6 Terra leads

GPT-5.6 Terra: 60.6 (#19), Yi-34B: 20.3 (#222)

Reasoning benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Hard Prompts14671104
Epoch Capabilities Index159.31117.28
ARC-AGI-283.9%—
SimpleBench48.9%—
Kagi LLM Benchmark51.3%—
NYT Connections (extended)78.4%—
ARC-AGI-196.5%—
CritPt30%—
Chess Puzzles54%—
Mystery Game Puzzles35%—
DTBench93.3%—
LMCA55%—
Surface Evolver Bench83.8%—
BIG-Bench Hard—71.7%

Math GPT-5.6 Terra leads

GPT-5.6 Terra: 81.5 (#10), Yi-34B: 19.8 (#277)

Math benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Math14631114
FrontierMath (Tiers 1-3)86%—
FrontierMath Tier 470.7%—
OTIS Mock AIME 2024-202599.7%—
ProofBench74%—
MATH Level 5—5.1%
GSM8K—76%

Knowledge GPT-5.6 Terra leads

GPT-5.6 Terra: 61.3 (#27), Yi-34B: 7.5 (#304)

Knowledge benchmarks
BenchmarkGPT-5.6 TerraYi-34B
GPQA Diamond93.3%14.7%
LMArena Expert14921061
SimpleQA Verified43.2%—
MMLU—76.3%

Multimodal Not comparable

GPT-5.6 Terra: 47.5 (#10), Yi-34B: —

Multimodal benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Vision1271—
Blueprint-Bench 230.8%—
Furniture Assembly54.2%—
LMArena Document1472—

Multilingual GPT-5.6 Terra leads

GPT-5.6 Terra: 54.5 (#42), Yi-34B: 29.9 (#259)

Multilingual benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Non-English14391079
LMArena Chinese15141175
LMArena French14761080
LMArena German14621042
LMArena Japanese1446993
LMArena Korean1420959
LMArena Russian14501050
LMArena Spanish14551070

Instruction Following GPT-5.6 Terra leads

GPT-5.6 Terra: 76.6 (#38), Yi-34B: 56.4 (#269)

Instruction Following benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Instruction Following14531091

Long Context GPT-5.6 Terra leads

GPT-5.6 Terra: 44.4 (#64), Yi-34B: 33.2 (#259)

Long Context benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Longer Query14521094

Writing & Preference GPT-5.6 Terra leads

GPT-5.6 Terra: 70.4 (#21), Yi-34B: 34.3 (#268)

Writing & Preference benchmarks
BenchmarkGPT-5.6 TerraYi-34B
LMArena Text14461129
LMArena Creative Writing14111108
LMArena Multi-Turn14511113
EQ-Bench Creative Writing1855—
EQ-Bench 41234—

Frequently asked questions

Is GPT-5.6 Terra better than Yi-34B?

GPT-5.6 Terra is the stronger model overall, scoring 59.1 to 27.4 on the Noometry Index.

Is GPT-5.6 Terra or Yi-34B better for coding?

GPT-5.6 Terra scores higher on coding benchmarks: 57.1 versus 31.8 in the Noometry coding category.

How many benchmarks do GPT-5.6 Terra and Yi-34B share?

19 benchmarks have published results for both models. GPT-5.6 Terra has 52 scored results on Noometry and Yi-34B has 23.

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