# Claude Opus 4.8 vs Gemini 3 Pro

> Side-by-side benchmark comparison for Claude Opus 4.8 and Gemini 3 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-8-vs-gemini-3-pro
- Last updated: October 10, 2026

- Shared sourced benchmarks: 7
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Claude Opus 4.8 if you want the stronger benchmark profile. Gemini 3 Pro only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Claude Opus 4.8 leads overall 69.12 to 59.42.
- The clearest category separation is in coding, where the averages are 60.8 for Claude Opus 4.8 and 42.9 for Gemini 3 Pro.
- The biggest single benchmark swing is ARC-AGI-2 in Reasoning, with scores of 72.1% and 31.1%.
- Gemini 3 Pro is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3 Pro also has the larger context window at 2M.

## Model Snapshot

| Property | Claude Opus 4.8 | Gemini 3 Pro |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 2M |
| Overall Score | 69.12 | 59.42 |
| Benchmarks Covered | 40 | 29 |
| Pricing (input/output) | $5.00 / $25.00 | $2.00 / $12.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 61.6 (Supported · #20/123)
- Gemini 3 Pro public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 21.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 74.6% | Coming soon | Coming soon |
| BrowseComp | 84.3% | Coming soon | Coming soon |
| DeepSearchQA | 93.1% | Coming soon | Coming soon |
| OSWorld-Verified | 83.4% | Coming soon | Coming soon |
| Finance Agent v2 | 53.9% | Coming soon | Coming soon |
| MCP Atlas | 82.2% | Coming soon | Coming soon |
| Toolathlon | 59.9% | Coming soon | Coming soon |
| Gert Labs | 72.97% | 63.23% | Claude Opus 4.8 |
| ResearchClawBench | 21.1% | Coming soon | Coming soon |
| OSWorld 2.0 | 20.6% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 71.9% | Coming soon | Coming soon |
| JobBench | Coming soon | 11.4% | Coming soon |

### Coding

- Winner: Directional only
- Claude Opus 4.8 public-lane score: 60.8 (Supported · #19/146)
- Gemini 3 Pro public-lane score: 42.9 (Estimated · #55/146)

| Benchmark | Claude Opus 4.8 | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 88.6% | Coming soon | Coming soon |
| SWE-bench Pro | 69.2% | Coming soon | Coming soon |
| SWE Multilingual | 84.4% | Coming soon | Coming soon |
| SWE Multimodal | 38.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 74.6% | Coming soon | Coming soon |
| cursorBench31 | 58.4% | Coming soon | Coming soon |
| CursorBench 3.2 | 62.3% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 46.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.8% | Coming soon | Coming soon |
| SWE-bench (Vals) | 88.6% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 32.9% | Coming soon | Coming soon |
| Vibe Code Bench | Coming soon | 14.30% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 62.9 (#24/28)
- Gemini 3 Pro public-lane score: 50.2 (Unranked · 4 rankable rows)

| Benchmark | Claude Opus 4.8 | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 72.1% | 31.1% | Claude Opus 4.8 |
| ARC-AGI-3 | 1.5% | Coming soon | Coming soon |
| ARC-AGI-1 | 92.50% | 75.00% | Claude Opus 4.8 |

### Multimodal & Grounded

- Winner: Directional only
- Claude Opus 4.8 public-lane score: 91.2 (#5/54)
- Gemini 3 Pro public-lane score: 80 (#18/54)

| Benchmark | Claude Opus 4.8 | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | Coming soon | Coming soon |
| ScreenSpot Pro | 87.9% | 72.7% | Claude Opus 4.8 |
| CharXiv | 89.9% | 81.4% | Claude Opus 4.8 |
| CharXiv w/o tools | 80.5% | Coming soon | Coming soon |
| MMMU | Coming soon | 87.2% | Coming soon |
| MMMU-Pro | Coming soon | 81% | Coming soon |
| RealWorldQA | Coming soon | 83.3% | Coming soon |
| OmniDocBench 1.5 | Coming soon | 88.5% | Coming soon |
| Video-MME (with subtitle) | Coming soon | 88.4% | Coming soon |
| Video-MME (w/o subtitle) | Coming soon | 87.7% | Coming soon |
| MathVision | Coming soon | 86.6% | Coming soon |
| We-Math | Coming soon | 86.9% | Coming soon |
| DynaMath | Coming soon | 85.1% | Coming soon |
| SimpleVQA | Coming soon | 73.2% | Coming soon |
| MMLongBench-Doc | Coming soon | 60.5% | Coming soon |
| CC-OCR | Coming soon | 79.0% | Coming soon |
| AI2D_TEST | Coming soon | 94.1% | Coming soon |
| CountBench | Coming soon | 97.3% | Coming soon |
| RefCOCO (avg) | Coming soon | 84.1% | Coming soon |
| ODINW13 | Coming soon | 46.3% | Coming soon |
| ERQA | Coming soon | 70.5% | Coming soon |
| VideoMMMU | Coming soon | 87.6% | Coming soon |
| MLVU (M-Avg) | Coming soon | 83.0% | Coming soon |
| V* | Coming soon | 88.0% | Coming soon |

### Knowledge

- Winner: Directional only
- Claude Opus 4.8 public-lane score: 70.7 (Supported · #14/177)
- Gemini 3 Pro public-lane score: 60.2 (Estimated · #44/177)

| Benchmark | Claude Opus 4.8 | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.6% | Coming soon | Coming soon |
| GPQA-D | 93.6% | Coming soon | Coming soon |
| HLE | 57.9% | Coming soon | Coming soon |
| HLE w/o tools | 49.8% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 92.4% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.6% | Coming soon | Coming soon |

### Multilingual

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: Coming soon
- Gemini 3 Pro public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| INCLUDE | 87.6% | Coming soon | Coming soon |

### Instruction Following

- Winner: Directional only
- Claude Opus 4.8 public-lane score: 75.4 (#61/127)
- Gemini 3 Pro public-lane score: 86.1 (#43/127)

### Mathematics

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 65.7 (#2/7)
- Gemini 3 Pro public-lane score: 55.7 (Unranked · 2 rankable rows)

| Benchmark | Claude Opus 4.8 | Gemini 3 Pro | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | 96.7% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 47.241% | 37.600% | Claude Opus 4.8 |
| FrontierMath v2 (Tier 4) | 31.250% | 18.750% | Claude Opus 4.8 |

## FAQ

### Which is better overall, Claude Opus 4.8 or Gemini 3 Pro?

Claude Opus 4.8 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.8 and Gemini 3 Pro?

The widest category gap is in coding, where the averages are 60.8 for Claude Opus 4.8 and 42.9 for Gemini 3 Pro.

### How many benchmarks does Claude Opus 4.8 cover on BenchLM?

Claude Opus 4.8 currently has 40 sourced benchmark scores on BenchLM.

### How many benchmarks does Gemini 3 Pro cover on BenchLM?

Gemini 3 Pro currently has 29 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Opus 4.8 vs Gemini 3 Pro Deep Think](/compare/claude-opus-4-8-vs-gemini-3-pro-deep-think)
- [Gemini 3 Pro vs Gemini 3 Pro Deep Think](/compare/gemini-3-pro-vs-gemini-3-pro-deep-think)
- [Claude Opus 4.8 vs Claude Opus 5.5](/compare/claude-opus-4-8-vs-claude-opus-5-5)
- [Gemini 3 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-pro)

## Explore More

- [Claude Opus 4.8 profile](/models/claude-opus-4-8)
- [Gemini 3 Pro profile](/models/gemini-3-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)