# Inkling vs Kimi K2.5 (Reasoning)

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

- Canonical page: https://benchlm.ai/compare/inkling-vs-kimi-k2-5-reasoning
- Last updated: October 14, 2026

- Shared sourced benchmarks: 5
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Kimi K2.5 (Reasoning) leads by point estimate. Conditional score ranges do not establish rank confidence. Choose using the category evidence and your own workload tests.

## Summary

- Kimi K2.5 (Reasoning) has the higher overall point estimate 56.55 to 52.13. Conditional score ranges do not establish rank confidence.
- The clearest category separation is in reasoning, where the averages are 79 for Inkling and 67.1 for Kimi K2.5 (Reasoning).
- The biggest single benchmark swing is BrowseComp in Agentic, with scores of 77.1% and 60.6%.
- Kimi K2.5 (Reasoning) is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Inkling also has the larger context window at 1M.

## Model Snapshot

| Property | Inkling | Kimi K2.5 (Reasoning) |
|----------|----------|----------|
| Creator | Thinking Machines Lab | Moonshot AI |
| Type | Open Weight | Proprietary |
| Reasoning | Hybrid | Reasoning |
| Context | 1M | 128K |
| Overall Score | 52.13 | 56.55 |
| Benchmarks Covered | 24 | 15 |
| Pricing (input/output) | $1.87 / $4.68 | $0.60 / $3.00 |

## Category Breakdown

### Agentic

- Winner: Directional only
- Inkling public-lane score: 36.2 (Supported · #72/124)
- Kimi K2.5 (Reasoning) public-lane score: 38.7 (Estimated · #66/124)

| Benchmark | Inkling | Kimi K2.5 (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 63.8% | Coming soon | Coming soon |
| BrowseComp | 77.1% | 60.6% | Inkling |
| MCP Atlas | 74.1% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 47.6% | Coming soon | Coming soon |
| CWE-bench v1 | 37.0% | Coming soon | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 50.8% | Coming soon |
| OSWorld-Verified | Coming soon | 63.3% | Coming soon |
| Gert Labs | Coming soon | 32.58% | Coming soon |

### Coding

- Winner: Not comparable
- Inkling public-lane score: 34 (Supported · #80/149)
- Kimi K2.5 (Reasoning) public-lane score: Coming soon

| Benchmark | Inkling | Kimi K2.5 (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 77.6% | 76.8% | Inkling |
| SWE-bench Pro | 54.3% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 63.8% | Coming soon | Coming soon |
| FrontierSWE v2 | 4.1% | Coming soon | Coming soon |
| LiveCodeBench (Vals) | 85.5% | Coming soon | Coming soon |
| SWE-bench (Vals) | 77.6% | Coming soon | Coming soon |
| LiveCodeBench v6 | Coming soon | 85.0% | Coming soon |
| Terminal-Bench 2.0 | Coming soon | 50.8% | Coming soon |
| Vibe Code Bench | Coming soon | 17.54% | Coming soon |

### Reasoning

- Winner: Not comparable
- Inkling public-lane score: 79 (#14/29)
- Kimi K2.5 (Reasoning) public-lane score: 67.1 (Unranked · 1 rankable row)

| Benchmark | Inkling | Kimi K2.5 (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| LongBench v2 | Coming soon | 61% | Coming soon |

### Multimodal & Grounded

- Winner: Kimi K2.5 (Reasoning)
- Inkling public-lane score: 67.5 (#35/54)
- Kimi K2.5 (Reasoning) public-lane score: 69 (#33/54)

| Benchmark | Inkling | Kimi K2.5 (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| MMMU-Pro | 73.5% | 78.5% | Kimi K2.5 (Reasoning) |
| CharXiv | 82% | 77.5% | Inkling |
| CharXiv w/o tools | 78.1% | Coming soon | Coming soon |

### Knowledge

- Winner: Directional only
- Inkling public-lane score: 54.5 (Supported · #62/181)
- Kimi K2.5 (Reasoning) public-lane score: 49.7 (Estimated · #80/181)

| Benchmark | Inkling | Kimi K2.5 (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 87.9% | 87.6% | Inkling |
| GPQA-D | 87.9% | Coming soon | Coming soon |
| HLE | 46% | Coming soon | Coming soon |
| HLE w/o tools | 30% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | 87.1% | Coming soon | Coming soon |
| MMLU-Pro (Vals) | 86.3% | Coming soon | Coming soon |
| MMLU-Pro | Coming soon | 87.1% | Coming soon |

### Instruction Following

- Winner: Not comparable
- Inkling public-lane score: 87.6 (#35/128)
- Kimi K2.5 (Reasoning) public-lane score: Coming soon

| Benchmark | Inkling | Kimi K2.5 (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.8% | Coming soon | Coming soon |

### Mathematics

- Winner: Not comparable
- Inkling public-lane score: 58.3 (#11/12)
- Kimi K2.5 (Reasoning) public-lane score: Coming soon

| Benchmark | Inkling | Kimi K2.5 (Reasoning) | Winner |
|-----------|-----------|-----------|--------|
| AIME26 | 97.1% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | 33.333% | Coming soon | Coming soon |
| FrontierMath v2 (Tier 4) | 4.878% | Coming soon | Coming soon |
| AIME 2025 | Coming soon | 96.1% | Coming soon |
| HMMT Feb 2025 | Coming soon | 95.4% | Coming soon |

## FAQ

### Which is better overall, Inkling or Kimi K2.5 (Reasoning)?

Kimi K2.5 (Reasoning) has the higher overall point estimate. Conditional score ranges do not establish rank confidence.

### Where is the biggest gap between Inkling and Kimi K2.5 (Reasoning)?

The widest category gap is in reasoning, where the averages are 79 for Inkling and 67.1 for Kimi K2.5 (Reasoning).

### How many benchmarks does Inkling cover on BenchLM?

Inkling currently has 24 sourced benchmark scores on BenchLM.

### How many benchmarks does Kimi K2.5 (Reasoning) cover on BenchLM?

Kimi K2.5 (Reasoning) currently has 15 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Inkling vs Inkling-Small](/compare/inkling-vs-inkling-small)
- [Kimi K2.5 (Reasoning) vs Inkling-Small](/compare/inkling-small-vs-kimi-k2-5-reasoning)
- [Inkling vs Kimi K2.5](/compare/inkling-vs-kimi-k2-5)
- [Kimi K2.5 (Reasoning) vs Kimi K2.5](/compare/kimi-k2-5-vs-kimi-k2-5-reasoning)

## Explore More

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