# Celeris-1.1 Decision vs Claude Opus 4.8

> Side-by-side benchmark comparison for Celeris-1.1 Decision and Claude Opus 4.8 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/celeris-1-1-decision-vs-claude-opus-4-8
- Last updated: November 5, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Celeris-1.1 Decision and Claude Opus 4.8.

## Summary

- Celeris-1.1 Decision and Claude Opus 4.8 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 | Celeris-1.1 Decision | Claude Opus 4.8 |
|----------|----------|----------|
| Creator | Celeris | Anthropic |
| Type | Proprietary | Proprietary |
| Reasoning | Unspecified | Reasoning |
| Context | 131K | 1M |
| Independent public score (not head-to-head) | null | 69.69 |
| Benchmarks Covered | 0 | 44 |
| Pricing (input/output) | $0.04 / $0.00 | $5.00 / $25.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: 60.6 (Supported · #29/135)

| Benchmark | Celeris-1.1 Decision | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | Coming soon | 21.1% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 74.6% | Coming soon |
| BrowseComp | Coming soon | 84.3% | Coming soon |
| DeepSearchQA | Coming soon | 93.1% | Coming soon |
| OSWorld-Verified | Coming soon | 83.4% | 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 |
| Gert Labs | Coming soon | 72.97% | Coming soon |
| ResearchClawBench | Coming soon | 21.1% | Coming soon |
| OSWorld 2.0 | Coming soon | 20.6% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 71.9% | Coming soon |
| MazeBench | Coming soon | 0% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: 60.6 (Supported · #18/156)

| Benchmark | Celeris-1.1 Decision | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | Coming soon | 88.6% | Coming soon |
| SWE-bench Pro | Coming soon | 69.2% | Coming soon |
| 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 |
| FrontierCode 1.1 Main | Coming soon | 46.5% | 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 |
| FrontierCode 2.0 | Coming soon | 14.7% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: 62.8 (#20/26)

| Benchmark | Celeris-1.1 Decision | 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: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: 88.1 (#9/58)

| Benchmark | Celeris-1.1 Decision | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| ExtractBench (LlamaIndex) | Coming soon | 86.84% | Coming soon |
| ParseBench | Coming soon | 62.27% | Coming soon |
| OfficeQA Pro | Coming soon | 66.2% | Coming soon |
| ScreenSpot Pro | Coming soon | 87.9% | Coming soon |
| CharXiv | Coming soon | 89.9% | Coming soon |
| CharXiv w/o tools | Coming soon | 80.5% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: 71.1 (Supported · #15/177)

| Benchmark | Celeris-1.1 Decision | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | Coming soon | 93.6% | Coming soon |
| GPQA-D | Coming soon | 93.6% | Coming soon |
| HLE | Coming soon | 57.9% | Coming soon |
| HLE w/o tools | Coming soon | 49.8% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 92.4% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 89.6% | Coming soon |

### Multilingual

- Winner: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: Coming soon

| Benchmark | Celeris-1.1 Decision | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| INCLUDE | Coming soon | 87.6% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: 75.4 (#70/157)

### Mathematics

- Winner: Insufficient shared evidence
- Celeris-1.1 Decision public-lane score: Coming soon
- Claude Opus 4.8 public-lane score: 84.4 (#1/12)

| Benchmark | Celeris-1.1 Decision | Claude Opus 4.8 | Winner |
|-----------|-----------|-----------|--------|
| USAMO 2026 | Coming soon | 96.7% | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 80.000% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 56.098% | Coming soon |

## FAQ

### Can I compare Celeris-1.1 Decision and Claude Opus 4.8 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

- [Celeris-1.1 Decision vs Celeris-1 Decision](/compare/celeris-1-1-decision-vs-celeris-1-decision)
- [Claude Opus 4.8 vs Celeris-1 Decision](/compare/celeris-1-decision-vs-claude-opus-4-8)
- [Celeris-1.1 Decision vs Gemini 4 Carbon](/compare/celeris-1-1-decision-vs-gemini-4-carbon)
- [Claude Opus 4.8 vs Gemini 4 Carbon](/compare/claude-opus-4-8-vs-gemini-4-carbon)

## Explore More

- [Celeris-1.1 Decision profile](/models/celeris-1-1-decision)
- [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)