# Grok 4.7 vs Mercury 2

> Grok 4.7 is the stronger model overall, scoring 53.1 to 39.1 on the Noometry Index. Mercury 2 costs 8.0× less per token, which makes it the better buy when Grok 4.7's lead doesn't matter for your workload.

- Canonical page: https://noometry.com/compare/grok-4-7-vs-mercury-2
- Last updated: 2026-10-10
- Shared benchmarks: 14

## Summary

- They share 14 benchmarks with published results for both. Grok 4.7 scores higher in 7 categories and Mercury 2 in 0 categories; 7 gaps are clear of the uncertainty.
- The widest gap is in knowledge, where Grok 4.7 leads 62.8 to 36.2.
- The biggest single-benchmark swing is SciCode: 57.8% for Grok 4.7 and 38.7% for Mercury 2.
- Mercury 2 is cheaper at $0.25 / $0.75 per million input/output tokens, against $2 / $6 for Grok 4.7.
- Grok 4.7 accepts more context: 500K tokens versus 128K.

## Snapshot

| | Grok 4.7 | Mercury 2 |
|---|---|---|
| Provider | xAI | Inception |
| Noometry Index | 53.1 | 39.1 |
| Rank | 37 | 175 |
| Context | 500K | 128K |
| Input $/M | $2 | $0.25 |
| Output $/M | $6 | $0.75 |
| Weights | Proprietary | Proprietary |

## Coding

- Grok 4.7: 58.0 (#18)
- Mercury 2: 33.5 (#255)

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| LMArena WebDev | 1639 | 1171 |
| SciCode | 57.8% | 38.7% |
| LMArena Coding | 1427 | 1391 |
| FrontierCode | 47.6% | — |
| CursorBench | 46.3% | — |
| FrontierSWE | 29.5% | — |
| WeirdML | — | 43.2% |
| ALE-Bench | — | 785.58 |

## Agentic & Tool Use

- Grok 4.7: 36.7 (#37)
- Mercury 2: —

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| APEX-Agents | 54.6% | — |
| GDP.pdf | 22.8% | — |
| Vending-Bench 2 | 10,537 | — |

## Reasoning

- Grok 4.7: 49.1 (#40)
- Mercury 2: 23.8 (#170)

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| CritPt | 18% | 0.8% |
| LMArena Hard Prompts | 1413 | 1362 |
| NYT Connections (extended) | 76.8% | — |
| Chess Puzzles | 38% | — |
| Mystery Game Puzzles | 29% | — |
| DTBench | 96% | — |
| LMCA | 49.4% | — |
| Epoch Capabilities Index | 153.53 | — |

## Math

- Grok 4.7: 57.8 (#39)
- Mercury 2: —

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| FrontierMath (Tiers 1-3) | 53% | — |
| FrontierMath Tier 4 | 17.1% | — |
| OTIS Mock AIME 2024-2025 | 98.1% | — |
| ProofBench | 34% | — |
| LMArena Math | 1407 | — |

## Knowledge

- Grok 4.7: 62.8 (#22)
- Mercury 2: 36.2 (#172)

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| LMArena Expert | 1422 | 1358 |
| GPQA Diamond | 92.7% | — |
| SimpleQA Verified | 56% | — |
| Vectara Hallucination Rate | — | 12.3% |

## Multimodal

- Grok 4.7: 35.5 (#87)
- Mercury 2: —

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| LMArena Vision | 1228 | — |
| Blueprint-Bench 2 | 32.5% | — |
| Furniture Assembly | 20.8% | — |

## Multilingual

- Grok 4.7: 50.8 (#116)
- Mercury 2: 46.6 (#157)

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| LMArena Non-English | 1389 | 1331 |
| LMArena Chinese | 1455 | 1417 |
| LMArena Russian | 1397 | 1304 |
| LMArena French | 1455 | — |
| LMArena Spanish | 1400 | — |

## Instruction Following

- Grok 4.7: 74.1 (#105)
- Mercury 2: 70.2 (#165)

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| LMArena Instruction Following | 1404 | 1329 |

## Long Context

- Grok 4.7: 43.1 (#104)
- Mercury 2: 40.5 (#154)

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| LMArena Longer Query | 1413 | 1330 |

## Writing & Preference

- Grok 4.7: 70.0 (#24)
- Mercury 2: 53.8 (#155)

| Benchmark | Grok 4.7 | Mercury 2 |
|---|---|---|
| LMArena Text | 1399 | 1355 |
| LMArena Creative Writing | 1391 | 1289 |
| LMArena Multi-Turn | 1393 | 1358 |
| EQ-Bench Creative Writing | 2007 | — |

## FAQ

### Is Grok 4.7 better than Mercury 2?

Grok 4.7 is the stronger model overall, scoring 53.1 to 39.1 on the Noometry Index. Mercury 2 costs 8.0× less per token, which makes it the better buy when Grok 4.7's lead doesn't matter for your workload.

### Which is cheaper, Grok 4.7 or Mercury 2?

Mercury 2 is cheaper. It lists at $0.25 per million input tokens and $0.75 per million output tokens; Grok 4.7 lists at $2 and $6.

### Is Grok 4.7 or Mercury 2 better for coding?

Grok 4.7 scores higher on coding benchmarks: 58.0 versus 33.5 in the Noometry coding category.

### Which has the bigger context window?

Grok 4.7 does, with 500K tokens against 128K.

### How many benchmarks do Grok 4.7 and Mercury 2 share?

14 benchmarks have published results for both models. Grok 4.7 has 39 scored results on Noometry and Mercury 2 has 17.