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Grok 4 vs Llama 4 Scout

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

Verdict

Grok 4 leads on LMSYS ELO (1358 vs 1265). Llama 4 Scout is ~16.2× cheaper on a 3:1 input:output blend. Llama 4 Scout is open-weights, the other is proprietary.

xAI

Grok 4

xAI’s latest. Real-time X search integration, strong on current events and meme-literate tasks.

Live web/X accessPersonalityFast inference on Colossus

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

Pricing

Input / 1M$5.00$0.35

Output / 1M$15.00$0.80

Context256K128K

Max output32K8K

LicenseProprietaryOpen weights

Released2026-03-012025-12-10

Benchmarks

LMSYS ELO1358.01265.0

MMLU Pro86.277.2

HumanEval88.482.4

MATH86.572.5

IFEval85.084.1

Per-task cost

Summarize a 1-hour meeting transcript$0.082$0.0057

Review a 500-line pull request$0.070$0.0044

Answer a customer support ticket$0.027$0.0017

Extract structured data from a resume$0.040$0.0026

Debug a stack trace with context$0.060$0.0037

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

Tool

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