# Claude Fable 5 vs Gemma 4 31B

> Side-by-side benchmark comparison for Claude Fable 5 and Gemma 4 31B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-fable-vs-gemma-4-31b
- Last updated: September 4, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Claude Fable 5 and Gemma 4 31B.

## Summary

- Claude Fable 5 and Gemma 4 31B do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Claude Fable 5 | Gemma 4 31B |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M+ | 256K |
| Independent public score (not head-to-head) | 80.9 | 58.69 |
| Benchmarks Covered | 18 | 8 |
| Pricing (input/output) | $10.00 / $50.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Fable 5 public-lane score: 74.8 (Supported · #3/151)
- Gemma 4 31B public-lane score: 27.6 (Supported · #140/151)

| Benchmark | Claude Fable 5 | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 34.0% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 84.3% | Coming soon | Coming soon |
| OSWorld-Verified | 85% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 80.5% | Coming soon | Coming soon |
| Gert Labs | Coming soon | 35.26% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Fable 5 public-lane score: 76.9 (Supported · #2/183)
- Gemma 4 31B public-lane score: 43.5 (Supported · #123/183)

| Benchmark | Claude Fable 5 | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 95% | Coming soon | Coming soon |
| SWE-bench Pro | 80% | Coming soon | Coming soon |
| FrontierSWE v2 | 48.0% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 53.5% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 84.3% | Coming soon | Coming soon |
| 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% | Coming soon | Coming soon |
| SWE-bench (Vals) | 95.0% | Coming soon | Coming soon |
| SWE-Rebench | Coming soon | 41.6% | Coming soon |
| React Native Evals | Coming soon | 75.2% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Fable 5 public-lane score: 62.5 (Unranked · 2 rankable rows)
- Gemma 4 31B public-lane score: 58.4 (#30/48)

| Benchmark | Claude Fable 5 | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| Blueprint-Bench 2 | 38.6% | Coming soon | Coming soon |
| OfficeQA Pro | 57.9% | Coming soon | Coming soon |
| MMMU-Pro | Coming soon | 76.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Fable 5 public-lane score: 76.2 (#11/22)
- Gemma 4 31B public-lane score: 70.1 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- Claude Fable 5 public-lane score: 83.5 (Supported · #2/181)
- Gemma 4 31B public-lane score: 47.9 (Supported · #104/181)

| Benchmark | Claude Fable 5 | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 93.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 91.5% | Coming soon | Coming soon |
| GPQA | Coming soon | 84.3% | Coming soon |
| MMLU-Pro | Coming soon | 85.2% | Coming soon |
| HLE | Coming soon | 26.5% | Coming soon |
| HLE w/o tools | Coming soon | 19.5% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Fable 5 public-lane score: 78.3 (#54/120)
- Gemma 4 31B public-lane score: 92.6 (#12/120)

## FAQ

### Can I compare Claude Fable 5 and Gemma 4 31B on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Claude Fable 5 vs Claude Fable 5.1](/compare/claude-fable-vs-claude-fable-5-1)
- [Gemma 4 31B vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemma-4-31b)
- [Claude Fable 5 vs Gemma 4 26B A4B](/compare/claude-fable-vs-gemma-4-26b-a4b)
- [Gemma 4 31B vs Gemma 4 26B A4B](/compare/gemma-4-26b-a4b-vs-gemma-4-31b)

## Explore More

- [Claude Fable 5 profile](/models/claude-fable)
- [Gemma 4 31B profile](/models/gemma-4-31b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)