deepseek-r1-0528 vs grok-4.20-multi-agent-beta-0309 Benchmark Comparison

Direct benchmark comparison between deepseek-r1-0528 and grok-4.20-multi-agent-beta-0309 based on LMArena Elo and the latest 2026 API pricing.

Direct Technical & Pricing Comparison

Frontier Model	LMArena Elo	API Cost (1M)	Throughput
deepseek-r1-0528	1422	$5e-7	37
grok-4.20-multi-agent-beta-0309	1476	$0.000002	535.5

*These models represent the Pareto Frontier (optimal cost-to-performance).*

Comparison Summary: grok-4.20-multi-agent-beta-0309 is the more capable model in this pair, leading by 54 Elo points.