# Kimi K2.5 (Reasoning) vs ZAYA1-8B

> Side-by-side benchmark comparison for Kimi K2.5 (Reasoning) and ZAYA1-8B across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/kimi-k2-5-reasoning-vs-zaya1-8b
- Last updated: September 18, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Kimi K2.5 (Reasoning) and ZAYA1-8B 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.
- ZAYA1-8B has the lower published output-token price.
- ZAYA1-8B has the larger published context window at 131K.

## Model Snapshot

| Property | Kimi K2.5 (Reasoning) | ZAYA1-8B |
|----------|----------|----------|
| Creator | Moonshot AI | Zyphra |
| Type | Proprietary | Open Weight |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 131K |
| Independent public score (not head-to-head) | 57.39 | null |
| Benchmarks Covered | 9 | 11 |
| Pricing (input/output) | $0.60 / $3.00 | $0.00 / $0.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Kimi K2.5 (Reasoning) public-lane score: 48.3 (Estimated · #68/154)
- ZAYA1-8B public-lane score: 46.1 (Estimated · #82/154)

| Benchmark | Kimi K2.5 (Reasoning) | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 50.8% | Coming soon | Coming soon |
| BrowseComp | 60.6% | Coming soon | Coming soon |
| Gert Labs | 32.58% | Coming soon | Coming soon |
| BFCL v4 | Coming soon | 39.2% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Kimi K2.5 (Reasoning) public-lane score: 51.1 (Estimated · #53/154)
- ZAYA1-8B public-lane score: Coming soon

| Benchmark | Kimi K2.5 (Reasoning) | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 76.8% | Coming soon | Coming soon |
| Vibe Code Bench | 17.54% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 65.8% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Kimi K2.5 (Reasoning) public-lane score: 63.3 (Unranked · 1 rankable row)
- ZAYA1-8B public-lane score: Coming soon

| Benchmark | Kimi K2.5 (Reasoning) | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 78.5% | Coming soon | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Kimi K2.5 (Reasoning) public-lane score: 50.9 (Estimated · #75/184)
- ZAYA1-8B public-lane score: 43.6 (Estimated · #120/184)

| Benchmark | Kimi K2.5 (Reasoning) | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87.6% | 71% | Kimi K2.5 (Reasoning) |
| MMLU-Pro | 87.1% | 74.2% | Kimi K2.5 (Reasoning) |
| GPQA-D | Coming soon | 71.0% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- ZAYA1-8B public-lane score: 23.5 (#121/124)

| Benchmark | Kimi K2.5 (Reasoning) | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| IFEval | Coming soon | 85.6% | Coming soon |
| IFBench | Coming soon | 52.6% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Kimi K2.5 (Reasoning) public-lane score: Coming soon
- ZAYA1-8B public-lane score: 61.3 (Unranked · 4 rankable rows)

| Benchmark | Kimi K2.5 (Reasoning) | ZAYA1-8B | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 96.1% | Coming soon | Coming soon |
| AIME26 | Coming soon | 89.1% | Coming soon |
| HMMT Feb 2026 | Coming soon | 71.6% | Coming soon |
| IMOAnswerBench | Coming soon | 59.3% | Coming soon |
| Apex | Coming soon | 32.2% | Coming soon |

## FAQ

### Is there enough evidence to pick between Kimi K2.5 (Reasoning) and ZAYA1-8B?

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

- [Kimi K2.5 (Reasoning) vs Kimi K2.5](/compare/kimi-k2-5-vs-kimi-k2-5-reasoning)
- [ZAYA1-8B vs Kimi K2.5](/compare/kimi-k2-5-vs-zaya1-8b)
- [Kimi K2.5 (Reasoning) vs ZAYA1-74B-Preview](/compare/kimi-k2-5-reasoning-vs-zaya1-74b-preview)
- [ZAYA1-8B vs ZAYA1-74B-Preview](/compare/zaya1-74b-preview-vs-zaya1-8b)

## Explore More

- [Kimi K2.5 (Reasoning) profile](/models/kimi-k2-5-reasoning)
- [ZAYA1-8B profile](/models/zaya1-8b)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)