# Claude Opus 4.8 vs Gemini 2.5 Pro

> Side-by-side benchmark comparison for Claude Opus 4.8 and Gemini 2.5 Pro across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-8-vs-gemini-2-5-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 2.5 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 49.42.
- The clearest category separation is in coding, where the averages are 60.8 for Claude Opus 4.8 and 23 for Gemini 2.5 Pro.
- The biggest single benchmark swing is HLE in Knowledge, with scores of 57.9% and 18.8%.
- Gemini 2.5 Pro is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.

## Model Snapshot

| Property | Claude Opus 4.8 | Gemini 2.5 Pro |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Non-Reasoning |
| Context | 1M | 1M |
| Overall Score | 69.12 | 49.42 |
| Benchmarks Covered | 40 | 9 |
| Pricing (input/output) | $5.00 / $25.00 | $1.25 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Claude Opus 4.8 public-lane score: 61.6 (Supported · #20/123)
- Gemini 2.5 Pro public-lane score: 24.6 (Estimated · #97/123)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 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% | 42.01% | 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 |

### Coding

- Winner: Claude Opus 4.8
- Claude Opus 4.8 public-lane score: 60.8 (Supported · #19/146)
- Gemini 2.5 Pro public-lane score: 23 (Supported · #111/146)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 88.6% | 63.8% | Claude Opus 4.8 |
| 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% | 54.4% | Claude Opus 4.8 |
| PostTrainBench v1.1 | 32.9% | Coming soon | Coming soon |
| Vibe Code Bench | Coming soon | 0.40% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 62.9 (#24/28)
- Gemini 2.5 Pro public-lane score: 73.5 (Unranked · 2 rankable rows)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 72.1% | Coming soon | Coming soon |
| ARC-AGI-3 | 1.5% | Coming soon | Coming soon |
| ARC-AGI-1 | 92.50% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 91.2 (#5/54)
- Gemini 2.5 Pro public-lane score: 74.8 (Unranked · 1 rankable row)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | 66.2% | Coming soon | Coming soon |
| ScreenSpot Pro | 87.9% | Coming soon | Coming soon |
| CharXiv | 89.9% | Coming soon | Coming soon |
| CharXiv w/o tools | 80.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Claude Opus 4.8
- Claude Opus 4.8 public-lane score: 70.7 (Supported · #14/177)
- Gemini 2.5 Pro public-lane score: 45.7 (Supported · #91/177)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 93.6% | 83% | Claude Opus 4.8 |
| GPQA-D | 93.6% | Coming soon | Coming soon |
| HLE | 57.9% | 18.8% | Claude Opus 4.8 |
| 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 2.5 Pro public-lane score: Coming soon

| Benchmark | Claude Opus 4.8 | Gemini 2.5 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 2.5 Pro public-lane score: 57.8 (#76/127)

### Mathematics

- Winner: Not comparable
- Claude Opus 4.8 public-lane score: 65.7 (#2/7)
- Gemini 2.5 Pro public-lane score: 35.6 (Unranked · 3 rankable rows)

| Benchmark | Claude Opus 4.8 | Gemini 2.5 Pro | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | 96.7% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 47.241% | 14.138% | Claude Opus 4.8 |
| FrontierMath v2 (Tier 4) | 31.250% | 4.167% | Claude Opus 4.8 |
| AIME 2024 | Coming soon | 92% | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.8 or Gemini 2.5 Pro?

Claude Opus 4.8 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.8 and Gemini 2.5 Pro?

The widest category gap is in coding, where the averages are 60.8 for Claude Opus 4.8 and 23 for Gemini 2.5 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 2.5 Pro cover on BenchLM?

Gemini 2.5 Pro currently has 9 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Claude Opus 4.8 vs Claude Opus 5.5](/compare/claude-opus-4-8-vs-claude-opus-5-5)
- [Gemini 2.5 Pro vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-2-5-pro)
- [Claude Opus 4.8 vs GPT-6 Astra](/compare/claude-opus-4-8-vs-gpt-6-astra)
- [Gemini 2.5 Pro vs GPT-6 Astra](/compare/gemini-2-5-pro-vs-gpt-6-astra)

## Explore More

- [Claude Opus 4.8 profile](/models/claude-opus-4-8)
- [Gemini 2.5 Pro profile](/models/gemini-2-5-pro)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)