Claude Sonnet 4.6 vs Grok 4.3

Pick two tools from the same category to compare side-by-side.

	Claude Sonnet 4.6 Anthropic's workhorse coding/agent model; strong tool use, long context.	Grok 4.3 xAI's flagship API model, billed as its most intelligent and fastest, with strong agentic tool calling.
Category	model	model
Vendor type	commercial	commercial
Pricing	usage	usage
Strengths	+ Excellent tool-use and structured-output reliability + Long context supports large codebases / document sets + Best-in-class for agentic coding workflows	+ Aggressive pricing ($1.25 input / $2.50 output per million tokens) for a 1M-context flagship + Vendor-reported leadership in agentic tool calling and instruction following + Companion multi-agent variant (grok-4.20-multi-agent) targeted at agentic workloads
Tradeoffs	− More expensive than Haiku for high-volume classification − API-only (no on-prem / open weights)	− Stated knowledge cutoff of November 2024 is older than competing flagships − Rapid model churn; xAI retired eight legacy models (including grok-3) in May 2026, so pinned integrations need active migration
Used in stacks	19	0