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Llama 4 Scout vs Claude Sonnet 4.6

Meta vs Anthropic. Specs, benchmarks, and real per-task cost — all in one page.

Verdict

Claude Sonnet 4.6 leads on LMSYS ELO (1368 vs 1265). Llama 4 Scout is ~13.0× cheaper on a 3:1 input:output blend. Llama 4 Scout is open-weights, the other is proprietary.

Meta
Llama 4 Scout

The 70B workhorse open-weight. Fits on a single H100, beloved by self-hosters.

Single-GPU deployableDirt cheap on aggregatorsStrong fine-tuning base
Anthropic
Claude Sonnet 4.6

The workhorse. Near-Opus quality at 1/5 the cost. The default choice for production code and agent workloads.

Excellent cost/quality ratioFast inferenceGreat for Cursor/Claude Code
Pricing
Input / 1M$0.35$3.00
Output / 1M$0.80$15.00
Context128K500K
Max output8K64K
LicenseOpen weightsProprietary
Released2025-12-102025-11-04
Benchmarks
LMSYS ELO1265.01368.0
MMLU Pro77.288.7
HumanEval82.492.1
SWE-Bench64.5
MATH72.585.0
GPQA59.4
MMMU74.1
IFEval84.190.5
Per-task cost
Summarize a 1-hour meeting transcript$0.0057$0.052
Review a 500-line pull request$0.0044$0.054
Answer a customer support ticket$0.0017$0.021
Extract structured data from a resume$0.0026$0.030
Debug a stack trace with context$0.0037$0.048

Per-call cost using published token counts for each task. Real-world prompts vary.