Claude Fable 5 vs Grok 4

01Differences

At a glance

Computed automatically from tracked data.

• Claude Fable 5's output price is 19% lower than Grok 4's ($18.50 vs $15.00 per 1M).
• Claude Fable 5 has a 3.9× larger context window (1,000,000 vs 256,000 tokens).
02Specs

Side by side

Claude Fable 5Grok 4
Input / 1M$3.00$3.00
Output / 1M$18.50$15.00
Context1,000,000256,000
Max output128,000256,000
Providers386
Released2026-06-072025-07-09
03Prices

Common providers

ProviderClaude Fable 5Grok 4
llmgateway$10.00 / $50.00$3.00 / $15.00
llmgateway-providers$10.00 / $50.00$3.00 / $15.00
zenmux$10.00 / $50.00$3.00 / $15.00
04History

Recent changes

Claude Fable 5
2026-09-15Price up amazon-bedrock
2026-09-15Price up amazon-bedrock
2026-09-08Added 302ai
2026-09-07Added vivgrid
2026-08-27Added orcarouter
Grok 4
2026-08-20Added llmgateway-providers
2026-08-10Deprecated zenmux
2026-08-04Removed requesty
2026-06-24Added llmgateway
2026-05-16Removed azure
as of 2026-09-16
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