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Claude Sonnet 4.6 vs Grok 4.3
Anthropic's most popular model meets xAI's value contender. Same 1M context window, very different price points — find out which delivers better value for your workload.
Pricing data verified: Jun 26, 2026
| Specification | Claude Sonnet 4.6 (Anthropic) | Grok 4.3 (xAI) |
|---|---|---|
| Input Price (per 1M tokens) | $3.00 | $1.25 |
| Output Price (per 1M tokens) | $15.00 | $2.50 |
| Context Window | 1M tokens | 1M tokens |
| Tier | Mid | Mid |
| Provider | Anthropic | xAI |
Calculate Your Exact Costs
Same tier, same context — see the real price difference for your usage.
Other Mid-Tier Models
Which Model for Which Use Case?
Chatbots & Virtual Assistants
Conversational interfaces that need natural responses. Grok 4.3's 83% cheaper output pricing makes it the clear winner for high-volume chat applications.
Code Generation & Review
Writing, reviewing, and debugging code. Claude Sonnet 4.6's instruction-following precision may edge out for complex architectural tasks, but Grok 4.3 costs 76% less overall.
Content Summarization
Processing and summarizing long documents. Both have 1M context. For summarization-heavy workloads, Grok 4.3's lower pricing makes it the clear value winner.
AI Agents & Autonomous Tasks
Multi-step autonomous workflows. Output-heavy by nature — Grok 4.3's 83% cheaper output pricing makes a massive difference at scale.
Comparing mid-tier workloads?
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Frequently Asked Questions
Is Claude Sonnet 4.6 more expensive than Grok 4.3?
Yes. Claude Sonnet 4.6 costs $3/$15 per 1M tokens. Grok 4.3 costs $1.25/$2.50 per 1M tokens. Grok is 58% cheaper on input and 83% cheaper on output — a massive difference for output-heavy workloads.
Which has a larger context window?
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 reasoning, or proven track record in production environments. Choose Grok 4.3 when cost is a primary concern — it's 58-83% cheaper while still offering 1M context.
How do these compare to Gemini 3.5 Flash?
Gemini 3.5 Flash costs $1.50/$9 per 1M tokens — between the two on input but closer to Sonnet on output. Grok 4.3 is cheapest at $1.25/$2.50. All three have 1M context windows. Grok 4.3 offers the best value for output-heavy workloads.
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