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Grok 4 vs Claude Opus 4.7

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

Verdict

Claude Opus 4.7 leads on LMSYS ELO (1412 vs 1358). Grok 4 is ~4.0× cheaper on a 3:1 input:output blend.

xAI

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

Live web/X accessPersonalityFast inference on Colossus

Anthropic

Anthropic’s frontier reasoning model. Leads SWE-Bench and holds top ranks on long-context coding and agentic workflows.

Best-in-class coding agent behaviorStrong instruction following1M-token context with high recallHigh reliability under tool use

Pricing

Input / 1M$5.00$15.00

Output / 1M$15.00$75.00

Context256K1.0M

Max output32K64K

LicenseProprietaryProprietary

Released2026-03-012026-03-12

Benchmarks

LMSYS ELO1358.01412.0

MMLU Pro86.292.8

HumanEval88.494.4

SWE-Bench—72.1

MATH86.589.3

GPQA—66.4

MMMU—79.2

IFEval85.092.1

Per-task cost

Summarize a 1-hour meeting transcript$0.082$0.263

Review a 500-line pull request$0.070$0.270

Answer a customer support ticket$0.027$0.105

Extract structured data from a resume$0.040$0.150

Debug a stack trace with context$0.060$0.240

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

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