Is Claude Sonnet 4.6 more expensive than Grok 4.3?

Yes. Claude Sonnet 4.6 costs $3/M input and $15/M output. Grok 4.3 costs $1.25/M input and $2.50/M output. Grok 4.3 is 58% cheaper on input and 83% cheaper on output. For a typical workload of 1M input + 500K output tokens/month, Claude Sonnet 4.6 costs $10.50 vs Grok 4.3's $2.50 — saving you $8/month.

Which has a larger context window: Claude Sonnet 4.6 or Grok 4.3?

Both Claude Sonnet 4.6 and Grok 4.3 offer 1M token context windows. They're equally capable for processing very long documents, codebases, or extended conversations.

When should I choose Claude Sonnet 4.6 over Grok 4.3?

Choose Claude Sonnet 4.6 when you need Anthropic's strong instruction-following, nuanced writing, or complex reasoning capabilities. Choose Grok 4.3 when cost is a primary concern — it's 58-83% cheaper while still offering 1M context and solid mid-tier performance.

How do Claude Sonnet 4.6 and Grok 4.3 compare to Gemini 3.5 Flash?

Gemini 3.5 Flash costs $1.50/$9 per 1M tokens — between the two on price. Grok 4.3 is cheapest at $1.25/$2.50, Claude Sonnet 4.6 is most expensive at $3/$15. All three have 1M context windows. Grok 4.3 offers the best value for output-heavy workloads.