Price comparison · checked October 12, 2026

Claude Fable 5.1 vs Grok 4.7 pricing

For a typical support chatbot (60,000 conversations a month), Grok 4.7 costs $288 a month and Claude Fable 5.1 costs $1,800. That makes Grok 4.7 6.2× cheaper for this workload.

Claude Fable 5.1Grok 4.7
ProviderAnthropicxAI
Input / 1M$10.00$2.00
Cached input / 1M$0.25$0.50
Output / 1M$50.00$6.00
Context window1M500K
Notes–Higher rate for prompts of 200K+

Monthly cost by workload

WorkloadClaude Fable 5.1Grok 4.7Difference
Support chatbot
60,000 req · 1,500 in / 300 out
$1,800$288Grok 4.7 6.2× cheaper
Document summaries
20,000 req · 6,000 in / 400 out
$1,600$288Grok 4.7 5.6× cheaper
Coding assistant
30,000 req · 4,000 in / 800 out
$2,400$384Grok 4.7 6.2× cheaper
RAG search
100,000 req · 2,500 in / 250 out
$3,750$650Grok 4.7 5.8× cheaper

Standard rates, no caching or batch discounts. Sources: docs.x.ai · platform.claude.com

Try your own numbers

Start from a use case

1,000 tokens is about 750 English words. Input includes your system prompt, chat history and any retrieved documents.

Grok 4.7
xAICheapest
$288 /mo
Claude Fable 5.1
Anthropic
$1,800 /mo

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