# Claude Opus 4.7 vs Grok 4.1 Fast (Reasoning)

> Side-by-side benchmark comparison for Claude Opus 4.7 and Grok 4.1 Fast (Reasoning) across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-opus-4-7-vs-grok-4-1-fast-reasoning
- Last updated: September 4, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude Opus 4.7 and Grok 4.1 Fast (Reasoning) share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Grok 4.1 Fast (Reasoning) has the larger published context window at 2M.

## Model Snapshot

| Property | Claude Opus 4.7 | Grok 4.1 Fast (Reasoning) |
|----------|----------|----------|
| Creator | Anthropic | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Reasoning |
| Context | 1M | 2M |
| Independent public score (not head-to-head) | 70.22 | 58.18 |
| Benchmarks Covered | 13 | 1 |
| Pricing (input/output) | $5.00 / $25.00 | N/A |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude Opus 4.7 public-lane score: 58.5 (Supported · #32/151)
- Grok 4.1 Fast (Reasoning) public-lane score: Coming soon

| Benchmark | Claude Opus 4.7 | Grok 4.1 Fast (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 65.59% | Coming soon | Coming soon |
| ResearchClawBench | 20.7% | Coming soon | Coming soon |
| OSWorld 2.0 | 13.9% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 68.5% | Coming soon | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude Opus 4.7 public-lane score: 62.7 (Supported · #15/183)
- Grok 4.1 Fast (Reasoning) public-lane score: 48.7 (Estimated · #85/183)

| Benchmark | Claude Opus 4.7 | Grok 4.1 Fast (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 71.00% | 1.20% | Claude Opus 4.7 |
| React Native Evals | 82.8% | Coming soon | Coming soon |
| FrontierCode 1.1 Main | 38.5% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.1% | Coming soon | Coming soon |
| SWE-bench (Vals) | 82.0% | Coming soon | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude Opus 4.7 public-lane score: Coming soon
- Grok 4.1 Fast (Reasoning) public-lane score: 53.3 (Unranked · 1 rankable row)

### Reasoning

- Winner: Insufficient shared evidence
- Claude Opus 4.7 public-lane score: Coming soon
- Grok 4.1 Fast (Reasoning) public-lane score: 71.6 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- Claude Opus 4.7 public-lane score: 64.9 (Estimated · #26/181)
- Grok 4.1 Fast (Reasoning) public-lane score: 51.5 (Estimated · #82/181)

| Benchmark | Claude Opus 4.7 | Grok 4.1 Fast (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 90.2% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 89.9% | Coming soon | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude Opus 4.7 public-lane score: Coming soon
- Grok 4.1 Fast (Reasoning) public-lane score: 62.8 (#69/120)

### Mathematics

- Winner: Insufficient shared evidence
- Claude Opus 4.7 public-lane score: 60.8 (Unranked · 2 rankable rows)
- Grok 4.1 Fast (Reasoning) public-lane score: Coming soon

| Benchmark | Claude Opus 4.7 | Grok 4.1 Fast (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | 43.793% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 22.917% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude Opus 4.7 and Grok 4.1 Fast (Reasoning)?

Not yet. The models share only 1 sourced benchmark row, 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

- [Claude Opus 4.7 vs Claude Opus 4.7 (Adaptive)](/compare/claude-opus-4-7-vs-claude-opus-4-7-adaptive)
- [Grok 4.1 Fast (Reasoning) vs Claude Opus 4.7 (Adaptive)](/compare/claude-opus-4-7-adaptive-vs-grok-4-1-fast-reasoning)
- [Claude Opus 4.7 vs Grok 4.1 Fast](/compare/claude-opus-4-7-vs-grok-4-1-fast)
- [Grok 4.1 Fast (Reasoning) vs Grok 4.1 Fast](/compare/grok-4-1-fast-vs-grok-4-1-fast-reasoning)

## Explore More

- [Claude Opus 4.7 profile](/models/claude-opus-4-7)
- [Grok 4.1 Fast (Reasoning) profile](/models/grok-4-1-fast-reasoning)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)