# Claude Fable 5 vs Gemini 3.7 Flash

> Side-by-side benchmark comparison for Claude Fable 5 and Gemini 3.7 Flash across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-fable-vs-gemini-3-7-flash
- Last updated: September 27, 2026

- Shared sourced benchmarks: 13
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Claude Fable 5 if you want the stronger benchmark profile. Gemini 3.7 Flash 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 67.66.
- The clearest category separation is in multimodal & grounded, where the averages are 62.6 for Claude Fable 5 and 82.6 for Gemini 3.7 Flash.
- The biggest single benchmark swing is FrontierSWE v2 in Coding, with scores of 47.0% and 20.3%.
- Gemini 3.7 Flash is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Claude Fable 5 | Gemini 3.7 Flash |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 1M |
| Overall Score | 79.07 | 67.66 |
| Benchmarks Covered | 21 | 25 |
| Pricing (input/output) | $10.00 / $50.00 | $0.75 / $3.75 |

## Category Breakdown

### Agentic

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 73.7 (Supported · #4/105)
- Gemini 3.7 Flash public-lane score: 58.6 (Supported · #20/105)

| Benchmark | Claude Fable 5 | Gemini 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 34.0% | 14.9% | Claude Fable 5 |
| Terminal-Bench 2.1 | 84.3% | 85.8% | Gemini 3.7 Flash |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.5% | 77.5% | Claude Fable 5 |
| ApprenticeBench | 34% | 16% | Claude Fable 5 |
| AutomationBench | Coming soon | 30.4% | Coming soon |
| OSWorld 2.0 | Coming soon | 47.9% | Coming soon |
| Agents' Last Exam | Coming soon | 26.3% | Coming soon |

### Coding

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 74.5 (Supported · #4/135)
- Gemini 3.7 Flash public-lane score: 60.3 (Supported · #17/135)

| Benchmark | Claude Fable 5 | Gemini 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95% | Coming soon | Coming soon |
| SWE-bench Pro | 80% | Coming soon | Coming soon |
| FrontierSWE v2 | 47.0% | 20.3% | Claude Fable 5 |
| FrontierCode 1.1 Main | 53.5% | 43.6% | Claude Fable 5 |
| Terminal-Bench 2.1 | 84.3% | 85.8% | Gemini 3.7 Flash |
| cursorBench31 | 70.6% | Coming soon | Coming soon |
| cursorBench32 | 70.5% | Coming soon | Coming soon |
| VulcanBench v3 | 89.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 89.8% | 88.7% | Claude Fable 5 |
| SWE-bench (Vals) | 95.0% | 80.8% | Claude Fable 5 |
| DeepSWE | Coming soon | 65.3% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Fable 5 public-lane score: 80.6 (Unranked · 4 rankable rows)
- Gemini 3.7 Flash public-lane score: 77.8 (Unranked · 5 rankable rows)

| Benchmark | Claude Fable 5 | Gemini 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | 98.50% | 95.50% | Claude Fable 5 |
| ARC-AGI-2 | 89.2% | 84.6% | Claude Fable 5 |
| MRCR v2 64K-128K | Coming soon | 97% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Fable 5 public-lane score: 62.6 (Unranked · 2 rankable rows)
- Gemini 3.7 Flash public-lane score: 82.6 (#10/50)

| Benchmark | Claude Fable 5 | Gemini 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| Blueprint-Bench 2 | 38.6% | Coming soon | Coming soon |
| OfficeQA Pro | 57.9% | Coming soon | Coming soon |
| CharXiv w/o tools | Coming soon | 84.5% | Coming soon |
| CharXiv | Coming soon | 88.7% | Coming soon |
| LVBench | Coming soon | 85.4% | Coming soon |

### Knowledge

- Winner: Claude Fable 5
- Claude Fable 5 public-lane score: 81.8 (Supported · #4/158)
- Gemini 3.7 Flash public-lane score: 71.1 (Supported · #10/158)

| Benchmark | Claude Fable 5 | Gemini 3.7 Flash | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 93.2% | 93.9% | Gemini 3.7 Flash |
| MMLU-Pro (Vals) | 91.5% | 90.1% | Claude Fable 5 |
| HLE-Verified | Coming soon | 53.6% | Coming soon |
| LABBench2 | Coming soon | 82.1% | Coming soon |
| BioMysteryBench (human-solvable) | Coming soon | 87.1% | Coming soon |
| BioMysteryBench (human-difficult) | Coming soon | 43.5% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Claude Fable 5 public-lane score: 75.7 (#58/124)
- Gemini 3.7 Flash public-lane score: Coming soon

## FAQ

### Which is better overall, Claude Fable 5 or Gemini 3.7 Flash?

Claude Fable 5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Fable 5 and Gemini 3.7 Flash?

The widest category gap is in multimodal & grounded, where the averages are 62.6 for Claude Fable 5 and 82.6 for Gemini 3.7 Flash.

### 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 Gemini 3.7 Flash cover on BenchLM?

Gemini 3.7 Flash currently has 25 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Fable 5 vs Claude Fable 5.1](/compare/claude-fable-vs-claude-fable-5-1)
- [Gemini 3.7 Flash vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-3-7-flash)
- [Claude Fable 5 vs GPT-6 Astra](/compare/claude-fable-vs-gpt-6-astra)
- [Gemini 3.7 Flash vs GPT-6 Astra](/compare/gemini-3-7-flash-vs-gpt-6-astra)

## Explore More

- [Claude Fable 5 profile](/models/claude-fable)
- [Gemini 3.7 Flash profile](/models/gemini-3-7-flash)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)