# Grok 4.5 vs Ornith-1.0-397B

> Side-by-side benchmark comparison for Grok 4.5 and Ornith-1.0-397B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-5-vs-ornith-1-0-397b
- Last updated: October 7, 2026

- Shared sourced benchmarks: 4
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Pick Grok 4.5 if you want the stronger benchmark profile. Ornith-1.0-397B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Grok 4.5 leads overall 63.97 to 59.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 83.3% and 77.5%.
- Ornith-1.0-397B is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Grok 4.5 also has the larger context window at 500K.

## Model Snapshot

| Property | Grok 4.5 | Ornith-1.0-397B |
|----------|----------|----------|
| Creator | xAI | DeepReinforce AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 500K | 256K |
| Overall Score | 63.97 | null |
| Benchmarks Covered | 17 | 7 |
| Pricing (input/output) | $2.00 / $6.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Not comparable
- Grok 4.5 public-lane score: 57.6 (Supported · #29/122)
- Ornith-1.0-397B public-lane score: Coming soon

| Benchmark | Grok 4.5 | Ornith-1.0-397B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 15.7% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 83.3% | 77.5% | Grok 4.5 |
| deepSwe | 53% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 67.8% | Coming soon | Coming soon |
| Claw-Eval | Coming soon | 77.1% | Coming soon |

### Coding

- Winner: Not comparable
- Grok 4.5 public-lane score: 57.7 (Supported · #27/146)
- Ornith-1.0-397B public-lane score: Coming soon

| Benchmark | Grok 4.5 | Ornith-1.0-397B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 64.7% | 62.2% | Grok 4.5 |
| SWE Multilingual | 78% | 78.9% | Ornith-1.0-397B |
| Terminal-Bench 2.1 | 83.3% | 77.5% | Grok 4.5 |
| CursorBench 3.2 | 66.7% | Coming soon | Coming soon |
| VulcanBench v3 | 89.9% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 87.4% | Coming soon | Coming soon |
| SWE-bench (Vals) | 86.6% | Coming soon | Coming soon |
| PostTrainBench v1.1 | 23.4% | Coming soon | Coming soon |
| SWE-bench Verified | Coming soon | 82.4% | Coming soon |
| NL2Repo | Coming soon | 48.2% | Coming soon |

### Reasoning

- Winner: Not comparable
- Grok 4.5 public-lane score: 50.4 (#28/28)
- Ornith-1.0-397B public-lane score: Coming soon

| Benchmark | Grok 4.5 | Ornith-1.0-397B | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.6% | Coming soon | Coming soon |
| ARC-AGI-3 | 0.3% | Coming soon | Coming soon |
| ARC-AGI-1 | 85.67% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Grok 4.5 public-lane score: 79.5 (Unranked · 1 rankable row)
- Ornith-1.0-397B public-lane score: Coming soon

### Knowledge

- Winner: Not comparable
- Grok 4.5 public-lane score: 67 (Supported · #19/174)
- Ornith-1.0-397B public-lane score: Coming soon

| Benchmark | Grok 4.5 | Ornith-1.0-397B | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 92.9% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.2% | Coming soon | Coming soon |

## FAQ

### Which is better overall, Grok 4.5 or Ornith-1.0-397B?

Grok 4.5 is ahead overall on BenchLM right now.

### How many benchmarks does Grok 4.5 cover on BenchLM?

Grok 4.5 currently has 17 sourced benchmark scores on BenchLM.

### How many benchmarks does Ornith-1.0-397B cover on BenchLM?

Ornith-1.0-397B currently has 7 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Grok 4.5 vs Ornith-1.0-35B](/compare/grok-4-5-vs-ornith-1-0-35b)
- [Ornith-1.0-397B vs Ornith-1.0-35B](/compare/ornith-1-0-35b-vs-ornith-1-0-397b)
- [Grok 4.5 vs Ornith-1.0-9B](/compare/grok-4-5-vs-ornith-1-0-9b)
- [Ornith-1.0-397B vs Ornith-1.0-9B](/compare/ornith-1-0-397b-vs-ornith-1-0-9b)

## Explore More

- [Grok 4.5 profile](/models/grok-4-5)
- [Ornith-1.0-397B profile](/models/ornith-1-0-397b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)