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All comparisons

Llama 3.1 405B vs o3

Side-by-side comparison of specifications, capabilities, and pricing.

Released2024-07-232025-03-31
Context window128K128K
Parameters405B
Architecturedecoder onlydecoder only
LicenseOpen SourceUnknown
Knowledge cutoff

Capabilities

Vision
Multimodal
Reasoning
Function calling
Tool use
Structured Outputs
Code execution

Availability

Providers

Benchmarks

HellaSwag95.8—HumanEval89.096.7Massive Multitask Language Understanding88.6—Chatbot Arena1228.01412.0Google-Proof Q&A51.587.7SWE-bench Verified—71.7LiveCodeBench—79.1Aider Polyglot—81.3Massive Multi-discipline Multimodal Understanding—82.9