Noometry

Model comparison

GPT-5.3 Chat vs Mistral Large 4

GPT-5.3 Chat and Mistral Large 4 score almost the same on the Noometry Index (42.8 vs 43.1), so choose on price, context window or the category you care about most.

Last verified . 12 shared benchmarks.

GPT-5.3 Chat OpenAI

42.8

Rank #109 Confirmed

Mistral Large 4 Mistral AI

43.1

Rank #99 Confirmed

Summary

  • They share 12 benchmarks with published results for both. GPT-5.3 Chat scores higher in 3 categories and Mistral Large 4 in 5 categories; 8 gaps are clear of the uncertainty.
  • The widest gap is in coding, where Mistral Large 4 leads 48.6 to 41.4.
  • Mistral Large 4 is cheaper at $0.68 / $2.09 per million input/output tokens, against $1.75 / $14 for GPT-5.3 Chat.
  • Mistral Large 4 accepts more context: 1.05M tokens versus 128K.

Side by side

GPT-5.3 ChatMistral Large 4
ProviderOpenAIMistral AI
Noometry Index42.843.1
Released2026-03-032026-10-06
WeightsProprietaryProprietary
Context window128K1.05M
Max output16K262K
Input $ / M tokens$1.75$0.68
Output $ / M tokens$14$2.09
Results tracked1815

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Category by category

Coding Mistral Large 4 leads

GPT-5.3 Chat: 41.4 (#124), Mistral Large 4: 48.6 (#57)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Coding14081475
LMArena WebDev—1541

Reasoning GPT-5.3 Chat leads

GPT-5.3 Chat: 28.5 (#102), Mistral Large 4: 22.5 (#192)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Hard Prompts13991444
NYT Connections (extended)—27.4%

Math Mistral Large 4 leads

GPT-5.3 Chat: 38.2 (#142), Mistral Large 4: 40.4 (#91)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Math13891488

Knowledge GPT-5.3 Chat leads

GPT-5.3 Chat: 38.8 (#140), Mistral Large 4: 36.6 (#166)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Expert13971447
SimpleQA Verified—20%

Multilingual Mistral Large 4 leads

GPT-5.3 Chat: 50.3 (#124), Mistral Large 4: 52.6 (#82)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Non-English13821415
LMArena Chinese14321491
LMArena Russian14001414
LMArena French1397—
LMArena German1384—
LMArena Japanese1352—
LMArena Korean1346—
LMArena Spanish1371—

Instruction Following Mistral Large 4 leads

GPT-5.3 Chat: 72.8 (#129), Mistral Large 4: 75.0 (#76)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Instruction Following13781424

Long Context Mistral Large 4 leads

GPT-5.3 Chat: 42.6 (#120), Mistral Large 4: 43.6 (#89)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Longer Query13961429

Writing & Preference GPT-5.3 Chat leads

GPT-5.3 Chat: 63.1 (#68), Mistral Large 4: 60.4 (#97)

BenchmarkGPT-5.3 ChatMistral Large 4
LMArena Text13891427
LMArena Creative Writing13551361
LMArena Multi-Turn14121424
EQ-Bench Creative Writing1690—

Frequently asked questions

Is GPT-5.3 Chat better than Mistral Large 4?

GPT-5.3 Chat and Mistral Large 4 score almost the same on the Noometry Index (42.8 vs 43.1), so choose on price, context window or the category you care about most.

Which is cheaper, GPT-5.3 Chat or Mistral Large 4?

Mistral Large 4 is cheaper. It lists at $0.68 per million input tokens and $2.09 per million output tokens; GPT-5.3 Chat lists at $1.75 and $14.

Is GPT-5.3 Chat or Mistral Large 4 better for coding?

Mistral Large 4 scores higher on coding benchmarks: 48.6 versus 41.4 in the Noometry coding category.

Which has the bigger context window?

Mistral Large 4 does, with 1.05M tokens against 128K.

How many benchmarks do GPT-5.3 Chat and Mistral Large 4 share?

12 benchmarks have published results for both models. GPT-5.3 Chat has 18 scored results on Noometry and Mistral Large 4 has 15.

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