# Claude Opus 4.5 Thinking vs Gemma 4 31B

> Side-by-side benchmark comparison for Claude Opus 4.5 Thinking and Gemma 4 31B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-5-thinking-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 Opus 4.5 Thinking and Gemma 4 31B.

## Summary

- Claude Opus 4.5 Thinking 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 Opus 4.5 Thinking | Gemma 4 31B |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 200K | 256K |
| Independent public score (not head-to-head) | 56.09 | 58.69 |
| Benchmarks Covered | 1 | 8 |
| Pricing (input/output) | N/A | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: Coming soon
- Gemma 4 31B public-lane score: 27.6 (Supported · #140/151)

| Benchmark | Claude Opus 4.5 Thinking | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | Coming soon | 35.26% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 55.2 (Estimated · #41/183)
- Gemma 4 31B public-lane score: 43.5 (Supported · #123/183)

| Benchmark | Claude Opus 4.5 Thinking | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 20.63% | 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 Opus 4.5 Thinking public-lane score: 69 (Unranked · 1 rankable row)
- Gemma 4 31B public-lane score: 58.4 (#30/48)

| Benchmark | Claude Opus 4.5 Thinking | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | Coming soon | 76.9% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 75.7 (Unranked · 2 rankable rows)
- Gemma 4 31B public-lane score: 70.1 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- Claude Opus 4.5 Thinking public-lane score: 56.1 (Estimated · #54/181)
- Gemma 4 31B public-lane score: 47.9 (Supported · #104/181)

| Benchmark | Claude Opus 4.5 Thinking | Gemma 4 31B | Winner |
|-----------|-----------|-----------|--------|
| 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 Opus 4.5 Thinking public-lane score: 69.7 (#63/120)
- Gemma 4 31B public-lane score: 92.6 (#12/120)

## FAQ

### Can I compare Claude Opus 4.5 Thinking 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 Opus 4.5 Thinking vs Claude Opus 4.5](/compare/claude-opus-4-5-vs-claude-opus-4-5-thinking)
- [Gemma 4 31B vs Claude Opus 4.5](/compare/claude-opus-4-5-vs-gemma-4-31b)
- [Claude Opus 4.5 Thinking vs Gemma 4 26B A4B](/compare/claude-opus-4-5-thinking-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 Opus 4.5 Thinking profile](/models/claude-opus-4-5-thinking)
- [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)