xAI
Grok 4.3
$0.00
per month
Input cost
Output cost
Cost per request
Requests/month
Anthropic
Claude Sonnet 4.6
$0.00
per month
Input cost
Output cost
Cost per request
Requests/month

Other Models to Consider

Claude Opus 4.8
Anthropic
$5.00 / $25.00 per 1M
1M context
GPT-5
OpenAI
$1.25 / $10.00 per 1M
272K context
Gemini 3.5 Flash
Google
$1.50 / $9.00 per 1M
1M context

Which Model for Which Use Case?

High-Volume Chatbots

Grok 4.3's 83% cheaper output pricing makes it the clear winner for chatbots handling thousands of daily conversations.

Better value: Grok 4.3

Safety-Critical Applications

Anthropic's safety-focused approach makes Claude Sonnet 4.6 the better choice for content moderation, sensitive applications, and enterprise compliance requirements.

Better safety: Claude Sonnet 4.6

Content Generation

Output-heavy workloads like article writing and marketing copy. Grok 4.3's 83% cheaper output pricing wins decisively.

Better value: Grok 4.3

Complex Reasoning

Claude Sonnet 4.6 excels at complex multi-step reasoning, nuanced analysis, and tasks requiring careful instruction following.

Better reasoning: Claude Sonnet 4.6

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Frequently Asked Questions

Is Grok 4.3 cheaper than Claude Sonnet 4.6?

Yes. Grok 4.3 is significantly cheaper: $1.25/M input (58% cheaper than Claude Sonnet 4.6's $3.00/M) and $2.50/M output (83% cheaper than Claude Sonnet 4.6's $15.00/M). Both have 1M context windows.

When would I choose Claude Sonnet 4.6?

Choose Claude Sonnet 4.6 if you need Anthropic's safety-focused approach, superior instruction following, or enterprise-grade content moderation. Claude also offers stronger performance on complex reasoning tasks.

Do both models have 1M context windows?

Yes. Both Grok 4.3 and Claude Sonnet 4.6 support 1M token context windows, making them suitable for long documents, codebases, and extended conversations.

Which is better for production workloads?

Grok 4.3 offers dramatically lower costs — up to 83% savings on output-heavy tasks. Claude Sonnet 4.6 provides Anthropic's enterprise infrastructure and safety guarantees. For cost-sensitive production, Grok wins. For enterprise compliance, Claude may be preferred.

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