# Claude Fable 5 vs Grok 4.6

> Side-by-side benchmark comparison for Claude Fable 5 and Grok 4.6 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-fable-vs-grok-4-6
- Last updated: September 25, 2026

- Shared sourced benchmarks: 12
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Claude Fable 5 if you want the stronger benchmark profile. Grok 4.6 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Fable 5 leads overall 79.07 to 69.19.
- The clearest category separation is in reasoning, where the averages are 80.6 for Claude Fable 5 and 57.6 for Grok 4.6.
- The biggest single benchmark swing is ARC-AGI-2 in Reasoning, with scores of 89.2% and 67.1%.
- Grok 4.6 is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Claude Fable 5 also has the larger context window at 1M+.

## Model Snapshot

| Property | Claude Fable 5 | Grok 4.6 |
|----------|----------|----------|
| Creator | Anthropic | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 500K |
| Overall Score | 79.07 | 69.19 |
| Benchmarks Covered | 21 | 17 |
| Pricing (input/output) | $10.00 / $50.00 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 73.7 (Supported · #4/105)
- Grok 4.6 public-lane score: 67.9 (Supported · #8/105)

| Benchmark | Claude Fable 5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 34.0% | 26.5% | Claude Fable 5 |
| Terminal-Bench 2.1 | 84.3% | Coming soon | Coming soon |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.5% | 78.3% | Claude Fable 5 |
| ApprenticeBench | 34% | 13% | Claude Fable 5 |
| APEX-Agents | Coming soon | 57.5% | Coming soon |

### Coding

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 74.5 (Supported · #4/135)
- Grok 4.6 public-lane score: 62 (Supported · #14/135)

| Benchmark | Claude Fable 5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95% | Coming soon | Coming soon |
| SWE-bench Pro | 80% | Coming soon | Coming soon |
| FrontierSWE v2 | 47.0% | 25.3% | Claude Fable 5 |
| FrontierCode 1.1 Main | 53.5% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 84.3% | Coming soon | Coming soon |
| cursorBench31 | 70.6% | Coming soon | Coming soon |
| cursorBench32 | 70.5% | 70.8% | Grok 4.6 |
| VulcanBench v3 | 89.5% | 87.0% | Claude Fable 5 |
| LiveCodeBench (Vals) | 89.8% | 88.2% | Claude Fable 5 |
| SWE-bench (Vals) | 95.0% | 95.6% | Grok 4.6 |
| Bug Hunt Bench | Coming soon | 27 fixes | Coming soon |
| DeepSWE | Coming soon | 65.9% | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 61.3% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Fable 5 public-lane score: 80.6 (Unranked · 4 rankable rows)
- Grok 4.6 public-lane score: 57.6 (#16/19)

| Benchmark | Claude Fable 5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 98.50% | 87.00% | Claude Fable 5 |
| ARC-AGI-2 | 89.2% | 67.1% | Claude Fable 5 |
| ARC-AGI-3 | Coming soon | 2.1% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Fable 5 public-lane score: 62.6 (Unranked · 2 rankable rows)
- Grok 4.6 public-lane score: Coming soon

| Benchmark | Claude Fable 5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Blueprint-Bench 2 | 38.6% | Coming soon | Coming soon |
| OfficeQA Pro | 57.9% | Coming soon | Coming soon |

### Knowledge

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 81.8 (Supported · #4/158)
- Grok 4.6 public-lane score: 69 (Supported · #13/158)

| Benchmark | Claude Fable 5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 93.2% | 94.7% | Grok 4.6 |
| MMLU-Pro (Vals) | 91.5% | 89.4% | Claude Fable 5 |

### Instruction Following

- Winner: Not comparable
- Claude Fable 5 public-lane score: 75.7 (#58/124)
- Grok 4.6 public-lane score: Coming soon

## FAQ

### Which is better overall, Claude Fable 5 or Grok 4.6?

Claude Fable 5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Fable 5 and Grok 4.6?

The widest category gap is in reasoning, where the averages are 80.6 for Claude Fable 5 and 57.6 for Grok 4.6.

### How many benchmarks does Claude Fable 5 cover on BenchLM?

Claude Fable 5 currently has 21 sourced benchmark scores on BenchLM.

### How many benchmarks does Grok 4.6 cover on BenchLM?

Grok 4.6 currently has 17 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Fable 5 vs Claude Fable 5.1](/compare/claude-fable-vs-claude-fable-5-1)
- [Grok 4.6 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-grok-4-6)
- [Claude Fable 5 vs GPT-6 Astra](/compare/claude-fable-vs-gpt-6-astra)
- [Grok 4.6 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-4-6)

## Explore More

- [Claude Fable 5 profile](/models/claude-fable)
- [Grok 4.6 profile](/models/grok-4-6)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)