# Mercury 3 vs Trinity-Large-Thinking

> Side-by-side benchmark comparison for Mercury 3 and Trinity-Large-Thinking across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/mercury-3-vs-trinity-large-thinking
- Last updated: October 19, 2026

- Shared sourced benchmarks: 2
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Mercury 3 and Trinity-Large-Thinking share only 2 sourced benchmark rows.

## Summary

- Only 2 shared sourced benchmark rows are available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Mercury 3 has the lower published output-token price.
- Mercury 3 has the larger published context window at 1M.

## Model Snapshot

| Property | Mercury 3 | Trinity-Large-Thinking |
|----------|----------|----------|
| Creator | Inception | Arcee AI |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 512K |
| Independent public score (not head-to-head) | null | 34.48 |
| Benchmarks Covered | 8 | 7 |
| Pricing (input/output) | $0.10 / $0.35 | $0.25 / $0.90 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 14 (Estimated · #119/130)

| Benchmark | Mercury 3 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| τ³-bench results | 30.2% | Coming soon | Coming soon |
| BrowseComp+ | 55.18% | Coming soon | Coming soon |
| DeepSearchQA | 71.3% | Coming soon | Coming soon |
| τ²-bench Airline | Coming soon | 88.0% | Coming soon |
| Gert Labs | Coming soon | 32.55% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 17.9 (Supported · #125/151)

| Benchmark | Mercury 3 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| DeepSWE | 46.3% | Coming soon | Coming soon |
| SWE-bench Verified* | Coming soon | 63.2% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 51.1 (Unranked · 2 rankable rows)

| Benchmark | Mercury 3 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 75.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 34.2 (Estimated · #139/186)

| Benchmark | Mercury 3 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| GPQA-D | 89.2% | 76.3% | Mercury 3 |
| MMLU-Pro (Arcee) | Coming soon | 83.4% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: 28.9 (#132/148)

| Benchmark | Mercury 3 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 76.8% | 52.3% | Mercury 3 |
| MultiChallenge (provider reports) | 60.35% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Mercury 3 public-lane score: Coming soon
- Trinity-Large-Thinking public-lane score: Coming soon

| Benchmark | Mercury 3 | Trinity-Large-Thinking | Winner |
|-----------|-----------|-----------|--------|
| AIME25 (Arcee) | Coming soon | 96.3% | Coming soon |

## FAQ

### Is there enough evidence to pick between Mercury 3 and Trinity-Large-Thinking?

Not yet. The models share only 2 sourced benchmark rows, 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

- [Mercury 3 vs Trinity-Large-Preview](/compare/mercury-3-vs-trinity-large-preview)
- [Trinity-Large-Thinking vs Trinity-Large-Preview](/compare/trinity-large-preview-vs-trinity-large-thinking)
- [Mercury 3 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-mercury-3)
- [Trinity-Large-Thinking vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-trinity-large-thinking)

## Explore More

- [Mercury 3 profile](/models/mercury-3)
- [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)