# A.X K2 vs Trinity-Large-Thinking

> Side-by-side benchmark comparison for A.X K2 and Trinity-Large-Thinking across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/a-x-k2-vs-trinity-large-thinking
- Last updated: September 10, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: A.X K2 and Trinity-Large-Thinking 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.
- A.X K2 has the lower published output-token price.
- Trinity-Large-Thinking has the larger published context window at 512K.

## Model Snapshot

| Property | A.X K2 | Trinity-Large-Thinking |
|----------|----------|----------|
| Creator | SK Telecom | Arcee AI |
| Type | Open Weight | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 262K | 512K |
| Independent public score (not head-to-head) | null | 43.4 |
| Benchmarks Covered | 10 | 5 |
| Pricing (input/output) | $0.00 / $0.00 | $0.25 / $0.90 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- A.X K2 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 38 (Estimated · #123/152)

| Benchmark | A.X K2 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 36.0% | Coming soon | Coming soon |
| Gert Labs | Coming soon | 32.55% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- A.X K2 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 27.3 (Supported · #143/151)

| Benchmark | A.X K2 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| LiveCodeBench v6 | 84.0% | Coming soon | Coming soon |
| SciCode | 41% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 36.0% | Coming soon | Coming soon |
| SWE-bench Verified* | Coming soon | 63.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- A.X K2 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 47.1 (Unranked · 2 rankable rows)

### Knowledge

- Winner: Insufficient shared evidence
- A.X K2 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 42 (Estimated · #124/183)

| Benchmark | A.X K2 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| HLE | 27.8% | Coming soon | Coming soon |
| GPQA-D | 85.6% | 76.3% | A.X K2 |
| MMLU-Pro (Arcee) | Coming soon | 83.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- A.X K2 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 67.8 (#66/123)

| Benchmark | A.X K2 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 75.9% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- A.X K2 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: Coming soon

| Benchmark | A.X K2 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 97.1% | Coming soon | Coming soon |
| Apex | 45.8% | Coming soon | Coming soon |
| Apex Shortlist | 88.6% | Coming soon | Coming soon |
| AIME25 (Arcee) | Coming soon | 96.3% | Coming soon |

## FAQ

### Is there enough evidence to pick between A.X K2 and Trinity-Large-Thinking?

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

- [A.X K2 vs A.X series](/compare/a-x-k2-vs-skt-ax)
- [Trinity-Large-Thinking vs A.X series](/compare/skt-ax-vs-trinity-large-thinking)
- [A.X K2 vs Trinity-Large-Preview](/compare/a-x-k2-vs-trinity-large-preview)
- [Trinity-Large-Thinking vs Trinity-Large-Preview](/compare/trinity-large-preview-vs-trinity-large-thinking)

## Explore More

- [A.X K2 profile](/models/a-x-k2)
- [Trinity-Large-Thinking profile](/models/trinity-large-thinking)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)