# DeepSeek LLM 67B vs Mercury 2.5

> DeepSeek LLM 67B has enough public results to be ranked (#341); Mercury 2.5 does not yet, so treat this comparison as directional.

- Canonical page: https://noometry.com/compare/deepseek-llm-67b-vs-mercury-2-5
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- The widest gap is in math, where Mercury 2.5 leads 22.4 to 8.1.
- DeepSeek LLM 67B has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| Provider | DeepSeek | Inception |
| Noometry Index | 24.8 | 30.2 |
| Rank | 341 | — |
| Context | — | 260K |
| Input $/M | — | $0.04 |
| Output $/M | — | $0.15 |
| Weights | Open | Proprietary |

## Coding

- DeepSeek LLM 67B: 31.3 (#273)
- Mercury 2.5: —

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| LMArena Coding | 1096 | — |
| ALE-Bench | — | 301.65 |

## Reasoning

- DeepSeek LLM 67B: 15.9 (#300)
- Mercury 2.5: —

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| Chess Puzzles | 0% | — |
| LMArena Hard Prompts | 1070 | — |
| Epoch Capabilities Index | 110.54 | — |

## Math

- DeepSeek LLM 67B: 8.1 (#318)
- Mercury 2.5: 22.4

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| OTIS Mock AIME 2024-2025 | 0.8% | — |
| ProofBench | — | 3% |
| LMArena Math | 1108 | — |
| MATH Level 5 | 6.4% | — |

## Knowledge

- DeepSeek LLM 67B: 7.1 (#308)
- Mercury 2.5: —

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| GPQA Diamond | 24.6% | — |

## Multilingual

- DeepSeek LLM 67B: 29.5 (#262)
- Mercury 2.5: —

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| LMArena Non-English | 1073 | — |
| LMArena Chinese | 1132 | — |

## Instruction Following

- DeepSeek LLM 67B: 55.7 (#272)
- Mercury 2.5: —

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| LMArena Instruction Following | 1079 | — |

## Long Context

- DeepSeek LLM 67B: 33.1 (#260)
- Mercury 2.5: —

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| LMArena Longer Query | 1092 | — |

## Writing & Preference

- DeepSeek LLM 67B: 31.8 (#277)
- Mercury 2.5: —

| Benchmark | DeepSeek LLM 67B | Mercury 2.5 |
|---|---|---|
| LMArena Text | 1105 | — |
| LMArena Creative Writing | 1067 | — |
| LMArena Multi-Turn | 1082 | — |

## FAQ

### Is DeepSeek LLM 67B better than Mercury 2.5?

DeepSeek LLM 67B has enough public results to be ranked (#341); Mercury 2.5 does not yet, so treat this comparison as directional.

### How many benchmarks do DeepSeek LLM 67B and Mercury 2.5 share?

0 benchmarks have published results for both models. DeepSeek LLM 67B has 15 scored results on Noometry and Mercury 2.5 has 2.