Model comparison

Claude Instant vs Llama 3.1-405B

Llama 3.1-405B has enough public results to be ranked (#288); Claude Instant does not yet, so treat this comparison as directional.

Last verified . 5 shared benchmarks.

Claude Instant Anthropic

29.5

Unranked Sparse

Llama 3.1-405B Meta

30.7

Rank #288 Confirmed

Summary

  • They share 5 benchmarks with published results for both. Claude Instant scores higher in 1 category and Llama 3.1-405B in 0 categories; one gap is clear of the uncertainty.
  • The biggest single-benchmark swing is DTBench: 45.8% for Claude Instant and 61.4% for Llama 3.1-405B.
  • Llama 3.1-405B has downloadable open weights; the other is API-only.

Side by side

Claude Instant and Llama 3.1-405B specifications
Claude InstantLlama 3.1-405B
ProviderAnthropicMeta
Noometry Index29.530.7
Released2023-08-092024-07-23
WeightsProprietaryOpen
Context window——
Max output——
Input $ / M tokens——
Output $ / M tokens——
Results tracked742

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Category by category

Coding Not comparable

Claude Instant: —, Llama 3.1-405B: 33.1 (#262)

Coding benchmarks
BenchmarkClaude InstantLlama 3.1-405B
WeirdML—21.4%
LMArena Coding—1291
HumanEval+50.6%—

Agentic & Tool Use Not comparable

Claude Instant: —, Llama 3.1-405B: 21.0 (#140)

Agentic & Tool Use benchmarks
BenchmarkClaude InstantLlama 3.1-405B
TheAgentCompany—7.4%
Cybench—7.5%

Reasoning Claude Instant leads

Claude Instant: 19.6, Llama 3.1-405B: 16.8 (#300)

Reasoning benchmarks
BenchmarkClaude InstantLlama 3.1-405B
DTBench45.8%61.4%
Epoch Capabilities Index120.28128.75
SimpleBench—23%
Kagi LLM Benchmark—45%
LMArena Hard Prompts—1269
BIG-Bench Hard—82.9%
ForecastBench—59.9
HellaSwag—89.2%
PIQA—85.9%
WinoGrande—89.2%

Math Not comparable

Claude Instant: —, Llama 3.1-405B: 18.4 (#290)

Math benchmarks
BenchmarkClaude InstantLlama 3.1-405B
OTIS Mock AIME 2024-2025—9.7%
Omni-MATH—24.9%
LMArena Math—1281
MATH Level 5—49.8%
GSM8K86.7%—

Knowledge Not comparable

Claude Instant: —, Llama 3.1-405B: 30.4 (#227)

Knowledge benchmarks
BenchmarkClaude InstantLlama 3.1-405B
ARC (AI2) Challenge86.3%95.3%
MMLU73.4%84.5%
TriviaQA78.9%82.7%
GPQA Diamond—50.9%
MMLU-Pro—72.3%
Confabulations—17.6%
GPQA (HELM)—52.2%
LMArena Expert—1243

Multilingual Not comparable

Claude Instant: —, Llama 3.1-405B: 40.7 (#214)

Multilingual benchmarks
BenchmarkClaude InstantLlama 3.1-405B
LMArena Non-English—1248
LMArena Chinese—1242
LMArena French—1279
LMArena German—1252
LMArena Japanese—1208
LMArena Korean—1184
LMArena Russian—1265
LMArena Spanish—1260

Instruction Following Not comparable

Claude Instant: —, Llama 3.1-405B: 65.9 (#214)

Instruction Following benchmarks
BenchmarkClaude InstantLlama 3.1-405B
IFEval—81.1%
LMArena Instruction Following—1259

Long Context Not comparable

Claude Instant: —, Llama 3.1-405B: 38.4 (#197)

Long Context benchmarks
BenchmarkClaude InstantLlama 3.1-405B
LMArena Longer Query—1266

Writing & Preference Not comparable

Claude Instant: —, Llama 3.1-405B: 38.9 (#251)

Writing & Preference benchmarks
BenchmarkClaude InstantLlama 3.1-405B
LMArena Text—1284
LMArena Creative Writing—1262
EQ-Bench Creative Writing—870
WildBench—78.3%
LMArena Multi-Turn—1297

Frequently asked questions

Is Claude Instant better than Llama 3.1-405B?

Llama 3.1-405B has enough public results to be ranked (#288); Claude Instant does not yet, so treat this comparison as directional.

How many benchmarks do Claude Instant and Llama 3.1-405B share?

5 benchmarks have published results for both models. Claude Instant has 7 scored results on Noometry and Llama 3.1-405B has 42.

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