Llama 4 (405B) vs Claude Opus 4.8

Head-to-head technical comparison of intelligence, capabilities, and API pricing.

Llama 4 (405B)
Meta
AI Mastery Index90.5
LMSYS Arena1285
Technical (MMLU-Pro)90.5%
Cost per 1M Tokens$0
Claude Opus 4.8
Anthropic
AI Mastery Index94.6
LMSYS Arena1362
Technical (MMLU-Pro)94.5%
Cost per 1M Tokens$15

Architect's Verdict

When comparing Llama 4 (405B) and Claude Opus 4.8, Claude Opus 4.8 edges out in overall capabilities according to the AI Mastery Index. However, for cost-sensitive workloads, Llama 4 (405B) offers a more economical API at $0 per 1M tokens. Your choice should depend heavily on whether you prioritize raw reasoning (MMLU) or scalable deployment economics.