# Claude Opus 4.6 vs Claude Opus 4.8

> Side-by-side benchmark comparison for Claude Opus 4.6 and Claude Opus 4.8 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-6-vs-claude-opus-4-8
- Last updated: October 10, 2026

- Shared sourced benchmarks: 15
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Claude Opus 4.8 if you want the stronger benchmark profile. Claude Opus 4.6 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 62.12.
- The clearest category separation is in instruction following, where the averages are 52.4 for Claude Opus 4.6 and 75.4 for Claude Opus 4.8.
- The biggest single benchmark swing is FrontierCode 1.1 Main in Coding, with scores of 26.9% and 46.5%.

## Model Snapshot

| Property | Claude Opus 4.6 | Claude Opus 4.8 |
|----------|----------|----------|
| Creator | Anthropic | Anthropic |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 1M |
| Overall Score | 62.12 | 69.12 |
| Benchmarks Covered | 36 | 40 |
| Pricing (input/output) | $5.00 / $25.00 | $5.00 / $25.00 |

## Category Breakdown

### Agentic

- Winner: Claude Opus 4.8
- Claude Opus 4.6 public-lane score: 44.3 (Supported · #54/123)
- Claude Opus 4.8 public-lane score: 61.6 (Supported · #20/123)

| Benchmark | Claude Opus 4.6 | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 65.4% | Coming soon | Coming soon |
| BrowseComp | 83.7% | 84.3% | Claude Opus 4.8 |
| OSWorld-Verified | 72.7% | 83.4% | Claude Opus 4.8 |
| AndroidWorld | 62.0% | Coming soon | Coming soon |
| Claw-Eval | 70.4% | Coming soon | Coming soon |
| DeepSearchQA | 73.7% | 93.1% | Claude Opus 4.8 |
| CyberGym | 66.6% | Coming soon | Coming soon |
| Gert Labs | 61.85% | 72.97% | Claude Opus 4.8 |
| ResearchClawBench | 19.9% | 21.1% | Claude Opus 4.8 |
| JobBench | 36.7% | Coming soon | Coming soon |
| ApprenticeBench | 5% | Coming soon | Coming soon |
| Terminal-Bench 3.0 | Coming soon | 21.1% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 74.6% | Coming soon |
| Finance Agent v2 | Coming soon | 53.9% | Coming soon |
| MCP Atlas | Coming soon | 82.2% | Coming soon |
| Toolathlon | Coming soon | 59.9% | Coming soon |
| OSWorld 2.0 | Coming soon | 20.6% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 71.9% | Coming soon |

### Coding

- Winner: Claude Opus 4.8
- Claude Opus 4.6 public-lane score: 47 (Supported · #49/146)
- Claude Opus 4.8 public-lane score: 60.8 (Supported · #19/146)

| Benchmark | Claude Opus 4.6 | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 80.8% | 88.6% | Claude Opus 4.8 |
| SWE-bench Verified* | 75.6% | Coming soon | Coming soon |
| LiveCodeBench Pro | 70.7% | Coming soon | Coming soon |
| SWE-bench Pro | 53.4% | 69.2% | Claude Opus 4.8 |
| SWE-Rebench | 65.3% | Coming soon | Coming soon |
| React Native Evals | 84.1% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | 65.4% | Coming soon | Coming soon |
| Vibe Code Bench | 57.57% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 26.9% | 46.5% | Claude Opus 4.8 |
| SWE Multilingual | Coming soon | 84.4% | Coming soon |
| SWE Multimodal | Coming soon | 38.4% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 74.6% | Coming soon |
| cursorBench31 | Coming soon | 58.4% | Coming soon |
| CursorBench 3.2 | Coming soon | 62.3% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 87.8% | Coming soon |
| SWE-bench (Vals) | Coming soon | 88.6% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 32.9% | Coming soon |

### Reasoning

- Winner: Not comparable
- Claude Opus 4.6 public-lane score: 72.1 (Unranked · 2 rankable rows)
- Claude Opus 4.8 public-lane score: 62.9 (#24/28)

| Benchmark | Claude Opus 4.6 | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 72.1% | Coming soon |
| ARC-AGI-3 | Coming soon | 1.5% | Coming soon |
| ARC-AGI-1 | Coming soon | 92.50% | Coming soon |

### Multimodal & Grounded

- Winner: Directional only
- Claude Opus 4.6 public-lane score: 74.5 (#25/54)
- Claude Opus 4.8 public-lane score: 91.2 (#5/54)

| Benchmark | Claude Opus 4.6 | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 77.3% | Coming soon | Coming soon |
| ERQA | 51.6% | Coming soon | Coming soon |
| ScreenSpot Pro | 83.1% | 87.9% | Claude Opus 4.8 |
| MedXpertQA (MM) | 64.8% | Coming soon | Coming soon |
| OfficeQA Pro | Coming soon | 66.2% | Coming soon |
| CharXiv | Coming soon | 89.9% | Coming soon |
| CharXiv w/o tools | Coming soon | 80.5% | Coming soon |

### Knowledge

- Winner: Directional only
- Claude Opus 4.6 public-lane score: 58.9 (Estimated · #48/177)
- Claude Opus 4.8 public-lane score: 70.7 (Supported · #14/177)

| Benchmark | Claude Opus 4.6 | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 91.3% | 93.6% | Claude Opus 4.8 |
| GPQA-D | 89.2% | 93.6% | Claude Opus 4.8 |
| SuperGPQA | 95% | Coming soon | Coming soon |
| MMLU-Pro | 82% | Coming soon | Coming soon |
| MMLU-Pro (Arcee) | 89.1% | Coming soon | Coming soon |
| HLE | 53% | 57.9% | Claude Opus 4.8 |
| HLE w/o tools | 40% | 49.8% | Claude Opus 4.8 |
| HealthBench Hard | 14.8% | Coming soon | Coming soon |
| MedXpertQA (Text) | 52.1% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 92.4% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 89.6% | Coming soon |

### Multilingual

- Winner: Not comparable
- Claude Opus 4.6 public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: Coming soon

| Benchmark | Claude Opus 4.6 | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| INCLUDE | Coming soon | 87.6% | Coming soon |

### Instruction Following

- Winner: Directional only
- Claude Opus 4.6 public-lane score: 52.4 (#79/127)
- Claude Opus 4.8 public-lane score: 75.4 (#61/127)

### Mathematics

- Winner: Not comparable
- Claude Opus 4.6 public-lane score: 59 (Unranked · 3 rankable rows)
- Claude Opus 4.8 public-lane score: 65.7 (#2/7)

| Benchmark | Claude Opus 4.6 | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | 99.8% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 40.700% | 47.241% | Claude Opus 4.8 |
| FrontierMath v2 (Tier 4) | 22.900% | 31.250% | Claude Opus 4.8 |
| USAMO 2026 | Coming soon | 96.7% | Coming soon |

## FAQ

### Which is better overall, Claude Opus 4.6 or Claude Opus 4.8?

Claude Opus 4.8 is ahead overall on BenchLM right now.

### Where is the biggest gap between Claude Opus 4.6 and Claude Opus 4.8?

The widest category gap is in instruction following, where the averages are 52.4 for Claude Opus 4.6 and 75.4 for Claude Opus 4.8.

### How many benchmarks does Claude Opus 4.6 cover on BenchLM?

Claude Opus 4.6 currently has 36 sourced benchmark scores on BenchLM.

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

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

## Related Comparisons

- [Claude Opus 4.6 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-vs-claude-opus-4-6-thinking)
- [Claude Opus 4.8 vs Claude Opus 4.6 (Adaptive)](/compare/claude-opus-4-6-thinking-vs-claude-opus-4-8)
- [Claude Opus 4.6 vs Claude Opus 5.5](/compare/claude-opus-4-6-vs-claude-opus-5-5)
- [Claude Opus 4.8 vs Claude Opus 5.5](/compare/claude-opus-4-8-vs-claude-opus-5-5)

## Explore More

- [Claude Opus 4.6 profile](/models/claude-opus-4-6)
- [Claude Opus 4.8 profile](/models/claude-opus-4-8)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)