# A.X K2 vs Granite 4.2 8B

> Side-by-side benchmark comparison for A.X K2 and Granite 4.2 8B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/a-x-k2-vs-granite-4-2-8b
- Last updated: September 10, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5

## Quick Verdict

Pick A.X K2 if you want the stronger benchmark profile. Granite 4.2 8B only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- A.X K2 leads overall 49 to 38.51.
- The biggest single benchmark swing is Terminal-Bench 2.1 in Agentic, with scores of 36.0% and 20.6%.
- A.X K2 also has the larger context window at 262K.

## Model Snapshot

| Property | A.X K2 | Granite 4.2 8B |
|----------|----------|----------|
| Creator | SK Telecom | IBM |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 128K |
| Overall Score | null | 38.51 |
| Benchmarks Covered | 10 | 14 |
| Pricing (input/output) | $0.00 / $0.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- A.X K2 public-lane score: Coming soon
- Granite 4.2 8B public-lane score: 31.8 (Estimated · #138/152)

| Benchmark | A.X K2 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 36.0% | 20.6% | A.X K2 |
| τ³-bench results | Coming soon | 58.1% | Coming soon |
| BFCL v4 | Coming soon | 52.4% | Coming soon |

### Coding

- Winner: Coming soon
- A.X K2 public-lane score: Coming soon
- Granite 4.2 8B public-lane score: 37.2 (Estimated · #125/151)

| Benchmark | A.X K2 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 84.0% | 73.2% | A.X K2 |
| SciCode | 41% | 36.1% | A.X K2 |
| Terminal-Bench 2.1 | 36.0% | 20.6% | A.X K2 |
| SWE-bench Verified | Coming soon | 47.7% | Coming soon |
| SWE-bench Pro | Coming soon | 19.1% | Coming soon |
| SWE Multilingual | Coming soon | 30.8% | Coming soon |

### Reasoning

- Winner: Coming soon
- A.X K2 public-lane score: Coming soon
- Granite 4.2 8B public-lane score: 51.9 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Coming soon
- A.X K2 public-lane score: Coming soon
- Granite 4.2 8B public-lane score: 34.7 (Supported · #161/183)

| Benchmark | A.X K2 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| HLE | 27.8% | Coming soon | Coming soon |
| GPQA-D | 85.6% | Coming soon | Coming soon |
| GPQA | Coming soon | 64.1% | Coming soon |
| MMLU-Pro | Coming soon | 74.0% | Coming soon |

### Instruction Following

- Winner: Coming soon
- A.X K2 public-lane score: Coming soon
- Granite 4.2 8B public-lane score: 84.4 (#46/123)

| Benchmark | A.X K2 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 75.9% | 79.3% | Granite 4.2 8B |

### Mathematics

- Winner: Coming soon
- A.X K2 public-lane score: Coming soon
- Granite 4.2 8B public-lane score: Coming soon

| Benchmark | A.X K2 | Granite 4.2 8B | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 97.1% | Coming soon | Coming soon |
| Apex | 45.8% | Coming soon | Coming soon |
| Apex Shortlist | 88.6% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 86.7% | Coming soon |
| HMMT Feb 2025 | Coming soon | 78.3% | Coming soon |

## FAQ

### Which is better overall, A.X K2 or Granite 4.2 8B?

A.X K2 is ahead overall on BenchLM right now.

### How many benchmarks does A.X K2 cover on BenchLM?

A.X K2 currently has 10 sourced benchmark scores on BenchLM.

### How many benchmarks does Granite 4.2 8B cover on BenchLM?

Granite 4.2 8B currently has 14 sourced benchmark scores on BenchLM.

## Related Comparisons

- [A.X K2 vs A.X series](/compare/a-x-k2-vs-skt-ax)
- [Granite 4.2 8B vs A.X series](/compare/granite-4-2-8b-vs-skt-ax)
- [A.X K2 vs Granite 4.2 30B](/compare/a-x-k2-vs-granite-4-2-30b)
- [Granite 4.2 8B vs Granite 4.2 30B](/compare/granite-4-2-30b-vs-granite-4-2-8b)

## Explore More

- [A.X K2 profile](/models/a-x-k2)
- [Granite 4.2 8B profile](/models/granite-4-2-8b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)