# Grok 4.5 vs Grok 4.6

> Side-by-side benchmark comparison for Grok 4.5 and Grok 4.6 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/grok-4-5-vs-grok-4-6
- Last updated: September 25, 2026

- Shared sourced benchmarks: 10
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Pick Grok 4.6 if you want the stronger benchmark profile. Grok 4.5 only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Grok 4.6 leads overall 69.19 to 65.27.
- The clearest category separation is in agentic, where the averages are 57.9 for Grok 4.5 and 67.9 for Grok 4.6.
- The biggest single benchmark swing is ARC-AGI-2 in Reasoning, with scores of 52.6% and 67.1%.

## Model Snapshot

| Property | Grok 4.5 | Grok 4.6 |
|----------|----------|----------|
| Creator | xAI | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 500K | 500K |
| Overall Score | 65.27 | 69.19 |
| Benchmarks Covered | 15 | 17 |
| Pricing (input/output) | $2.00 / $6.00 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Grok 4.6
- Grok 4.5 public-lane score: 57.9 (Supported · #21/105)
- Grok 4.6 public-lane score: 67.9 (Supported · #8/105)

| Benchmark | Grok 4.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 3.0 | 15.7% | 26.5% | Grok 4.6 |
| Terminal-Bench 2.1 | 83.3% | Coming soon | Coming soon |
| deepSwe | 53% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 67.8% | 78.3% | Grok 4.6 |
| APEX-Agents | Coming soon | 57.5% | Coming soon |
| ApprenticeBench | Coming soon | 13% | Coming soon |

### Coding

- Winner: Grok 4.6
- Grok 4.5 public-lane score: 58.1 (Supported · #19/135)
- Grok 4.6 public-lane score: 62 (Supported · #14/135)

| Benchmark | Grok 4.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Pro | 64.7% | Coming soon | Coming soon |
| SWE Multilingual | 78% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 83.3% | Coming soon | Coming soon |
| cursorBench32 | 66.7% | 70.8% | Grok 4.6 |
| VulcanBench v3 | 89.9% | 87.0% | Grok 4.5 |
| LiveCodeBench (Vals) | 87.4% | 88.2% | Grok 4.6 |
| SWE-bench (Vals) | 86.6% | 95.6% | Grok 4.6 |
| Bug Hunt Bench | Coming soon | 27 fixes | Coming soon |
| DeepSWE | Coming soon | 65.9% | Coming soon |
| FrontierCode 1.1 Extended | Coming soon | 61.3% | Coming soon |
| FrontierSWE v2 | Coming soon | 25.3% | Coming soon |

### Reasoning

- Winner: Grok 4.6
- Grok 4.5 public-lane score: 50.3 (#19/19)
- Grok 4.6 public-lane score: 57.6 (#16/19)

| Benchmark | Grok 4.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | 52.6% | 67.1% | Grok 4.6 |
| ARC-AGI-3 | 0.3% | 2.1% | Grok 4.6 |
| ARC-AGI-1 | Coming soon | 87.00% | Coming soon |

### Multimodal & Grounded

- Winner: Not comparable
- Grok 4.5 public-lane score: 78.5 (Unranked · 1 rankable row)
- Grok 4.6 public-lane score: Coming soon

### Knowledge

- Winner: Grok 4.6
- Grok 4.5 public-lane score: 66.8 (Supported · #17/158)
- Grok 4.6 public-lane score: 69 (Supported · #13/158)

| Benchmark | Grok 4.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 92.9% | 94.7% | Grok 4.6 |
| MMLU-Pro (Vals) | 89.2% | 89.4% | Grok 4.6 |

## FAQ

### Which is better overall, Grok 4.5 or Grok 4.6?

Grok 4.6 is ahead overall on BenchLM right now.

### Where is the biggest gap between Grok 4.5 and Grok 4.6?

The widest category gap is in agentic, where the averages are 57.9 for Grok 4.5 and 67.9 for Grok 4.6.

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

Grok 4.5 currently has 15 sourced benchmark scores on BenchLM.

### How many benchmarks does Grok 4.6 cover on BenchLM?

Grok 4.6 currently has 17 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Grok 4.5 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-4-5)
- [Grok 4.6 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-4-6)
- [Grok 4.5 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-grok-4-5)
- [Grok 4.6 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-grok-4-6)

## Explore More

- [Grok 4.5 profile](/models/grok-4-5)
- [Grok 4.6 profile](/models/grok-4-6)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)