# Composer 2.5 vs Grok 4.6

> Side-by-side benchmark comparison for Composer 2.5 and Grok 4.6 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/composer-2-5-vs-grok-4-6
- Last updated: September 25, 2026

- Shared sourced benchmarks: 3
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.7

## Quick Verdict

Evidence is too thin for a benchmark verdict: Composer 2.5 and Grok 4.6 share only 3 sourced benchmark rows.

## Summary

- Only 3 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Composer 2.5 has the lower published output-token price.
- Grok 4.6 has the larger published context window at 500K.

## Model Snapshot

| Property | Composer 2.5 | Grok 4.6 |
|----------|----------|----------|
| Creator | Cursor | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 200K | 500K |
| Independent public score (not head-to-head) | null | 69.19 |
| Benchmarks Covered | 7 | 17 |
| Pricing (input/output) | $0.50 / $2.50 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Composer 2.5 public-lane score: Coming soon
- Grok 4.6 public-lane score: 67.9 (Supported · #8/105)

| Benchmark | Composer 2.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 69.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 58.4% | 78.3% | Grok 4.6 |
| Terminal-Bench 3.0 | Coming soon | 26.5% | Coming soon |
| APEX-Agents | Coming soon | 57.5% | Coming soon |
| ApprenticeBench | Coming soon | 13% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Composer 2.5 public-lane score: Coming soon
- Grok 4.6 public-lane score: 62 (Supported · #14/135)

| Benchmark | Composer 2.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 69.3% | Coming soon | Coming soon |
| SWE Multilingual | 79.8% | Coming soon | Coming soon |
| cursorBench31 | 63.2% | Coming soon | Coming soon |
| cursorBench32 | 56.1% | 70.8% | Grok 4.6 |
| SWE-bench (Vals) | 79.6% | 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 |
| VulcanBench v3 | Coming soon | 87.0% | Coming soon |
| FrontierSWE v2 | Coming soon | 25.3% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 88.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Composer 2.5 public-lane score: Coming soon
- Grok 4.6 public-lane score: 57.6 (#16/19)

| Benchmark | Composer 2.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | Coming soon | 87.00% | Coming soon |
| ARC-AGI-2 | Coming soon | 67.1% | Coming soon |
| ARC-AGI-3 | Coming soon | 2.1% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Composer 2.5 public-lane score: Coming soon
- Grok 4.6 public-lane score: 69 (Supported · #13/158)

| Benchmark | Composer 2.5 | Grok 4.6 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | Coming soon | 94.7% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 89.4% | Coming soon |

## FAQ

### Is there enough evidence to pick between Composer 2.5 and Grok 4.6?

Not yet. The models share only 3 sourced benchmark rows, so this mirror reports the available measurements and metadata without naming a broad winner.

### What can I compare safely on this page?

Published pricing, context windows, model type, and individual shared benchmark rows are directly comparable. Independent overall scores and non-overlapping benchmark coverage are labeled separately and should not be read as a controlled head-to-head result.

## Related Comparisons

- [Composer 2.5 vs Composer 2](/compare/composer-2-vs-composer-2-5)
- [Grok 4.6 vs Composer 2](/compare/composer-2-vs-grok-4-6)
- [Composer 2.5 vs Composer 2 Fast](/compare/composer-2-5-vs-composer-2-fast)
- [Grok 4.6 vs Composer 2 Fast](/compare/composer-2-fast-vs-grok-4-6)

## Explore More

- [Composer 2.5 profile](/models/composer-2-5)
- [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)