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Claude Fable 5.1 vs Grok Imagine Image Pro

Comparing Claude Fable 5.1 and Grok Imagine Image Pro across benchmarks, pricing, and capabilities.

Anthropic · xAI · Updated for 2026

Which is better?

Claude Fable 5.1 and Grok Imagine Image Pro trade strengths across price, capabilities, and technical limits. The better choice depends on the workload.

Claude Fable 5.1 also accepts a larger context window (1,000,000 input tokens), making it the stronger choice for long documents and large codebases.

Based on current LLM Stats indexes, shared benchmarks, pricing, and model metadata for 2026.

Choose Claude Fable 5.1

  • you process long inputs — it offers a 1,000,000 token context window
  • you want the most recent training data — it shipped Sep 2026

Choose Grok Imagine Image Pro

  • you are already invested in the xAI ecosystem

FAQ

Common questions about Claude Fable 5.1 vs Grok Imagine Image Pro.

Which is better, Claude Fable 5.1 or Grok Imagine Image Pro?

Claude Fable 5.1 (Anthropic) and Grok Imagine Image Pro (xAI) each have strengths in different areas. Compare their benchmark scores, pricing, context windows, and capabilities above to determine which fits your needs.

How does Claude Fable 5.1 compare to Grok Imagine Image Pro in benchmarks?

Claude Fable 5.1 scores OSWorld 2.0: 77.9%, CursorBench v3.2: 73.4%, Humanity's Last Exam: 65.0%, GDPval-AA: 61.8%, Terminal-Bench 4.0: 55.8%.

What are the context window sizes for Claude Fable 5.1 and Grok Imagine Image Pro?

Claude Fable 5.1 supports 1.0M tokens and Grok Imagine Image Pro supports 131K tokens. A larger context window lets you process longer documents, conversations, or codebases in a single request.

What are the main differences between Claude Fable 5.1 and Grok Imagine Image Pro?

Key differences include context window (1.0M vs 131K), multimodal support (yes vs no). See the full comparison above for benchmark-by-benchmark results.

Who makes Claude Fable 5.1 and Grok Imagine Image Pro?

Claude Fable 5.1 is developed by Anthropic and Grok Imagine Image Pro is developed by xAI.

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