Noometry

Model comparison

GPT-5.6 Terra vs Mistral Small 4

GPT-5.6 Terra has enough public results to be ranked (#15); Mistral Small 4 does not yet, so treat this comparison as directional.

Last verified . 1 shared benchmarks.

GPT-5.6 Terra OpenAI

59.1

Rank #15 Confirmed

Mistral Small 4 Mistral AI

30.2

Unranked Sparse

Summary

  • They share 1 benchmark with published results for both. GPT-5.6 Terra scores higher in 1 category and Mistral Small 4 in 0 categories; one gap is clear of the uncertainty.
  • The widest gap is in reasoning, where GPT-5.6 Terra leads 60.6 to 21.2.
  • The biggest single-benchmark swing is Kagi LLM Benchmark: 51.3% for GPT-5.6 Terra and 40.5% for Mistral Small 4.
  • Mistral Small 4 is cheaper at $0.075 / $0.30 per million input/output tokens, against $2 / $12 for GPT-5.6 Terra.
  • GPT-5.6 Terra accepts more context: 1.05M tokens versus 262K.
  • Mistral Small 4 has downloadable open weights; the other is API-only.

Side by side

GPT-5.6 TerraMistral Small 4
ProviderOpenAIMistral AI
Noometry Index59.130.2
Released2026-07-09—
WeightsProprietaryOpen
Context window1.05M262K
Max output128K210K
Input $ / M tokens$2$0.075
Output $ / M tokens$12$0.30
Results tracked521

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Category by category

Coding Not comparable

GPT-5.6 Terra: 57.1 (#16), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
DeepSWE69.6%—
FrontierCode41.3%—
CursorBench41.3%—
LMArena WebDev1520—
SciCode55%—
WeirdML78.3%—
LMArena Coding1484—
ALE-Bench1,951—

Agentic & Tool Use Not comparable

GPT-5.6 Terra: 40.2 (#23), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
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), Mistral Small 4: 21.2

BenchmarkGPT-5.6 TerraMistral Small 4
Kagi LLM Benchmark51.3%40.5%
ARC-AGI-283.9%—
SimpleBench48.9%—
NYT Connections (extended)78.4%—
ARC-AGI-196.5%—
CritPt30%—
Chess Puzzles54%—
LMArena Hard Prompts1467—
Mystery Game Puzzles35%—
DTBench93.3%—
LMCA55%—
Surface Evolver Bench83.8%—
Epoch Capabilities Index159.31—

Math Not comparable

GPT-5.6 Terra: 81.5 (#10), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
FrontierMath (Tiers 1-3)86%—
FrontierMath Tier 470.7%—
OTIS Mock AIME 2024-202599.7%—
ProofBench74%—
LMArena Math1463—

Knowledge Not comparable

GPT-5.6 Terra: 61.3 (#27), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
GPQA Diamond93.3%—
SimpleQA Verified43.2%—
LMArena Expert1492—

Multimodal Not comparable

GPT-5.6 Terra: 47.5 (#10), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
LMArena Vision1271—
Blueprint-Bench 230.8%—
Furniture Assembly54.2%—
LMArena Document1472—

Multilingual Not comparable

GPT-5.6 Terra: 54.5 (#42), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
LMArena Non-English1439—
LMArena Chinese1514—
LMArena French1476—
LMArena German1462—
LMArena Japanese1446—
LMArena Korean1420—
LMArena Russian1450—
LMArena Spanish1455—

Instruction Following Not comparable

GPT-5.6 Terra: 76.6 (#38), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
LMArena Instruction Following1453—

Long Context Not comparable

GPT-5.6 Terra: 44.4 (#64), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
LMArena Longer Query1452—

Writing & Preference Not comparable

GPT-5.6 Terra: 70.4 (#21), Mistral Small 4: —

BenchmarkGPT-5.6 TerraMistral Small 4
LMArena Text1446—
LMArena Creative Writing1411—
EQ-Bench Creative Writing1855—
EQ-Bench 41234—
LMArena Multi-Turn1451—

Frequently asked questions

Is GPT-5.6 Terra better than Mistral Small 4?

GPT-5.6 Terra has enough public results to be ranked (#15); Mistral Small 4 does not yet, so treat this comparison as directional.

Which is cheaper, GPT-5.6 Terra or Mistral Small 4?

Mistral Small 4 is cheaper. It lists at $0.075 per million input tokens and $0.30 per million output tokens; GPT-5.6 Terra lists at $2 and $12.

Which has the bigger context window?

GPT-5.6 Terra does, with 1.05M tokens against 262K.

How many benchmarks do GPT-5.6 Terra and Mistral Small 4 share?

1 benchmark has published results for both models. GPT-5.6 Terra has 52 scored results on Noometry and Mistral Small 4 has 1.

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