# Granite 4.2 8B vs Kimi K3

> Side-by-side benchmark comparison for Granite 4.2 8B and Kimi K3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/granite-4-2-8b-vs-kimi-k3
- Last updated: October 15, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Granite 4.2 8B and Kimi K3 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.
- Granite 4.2 8B has the lower published output-token price.
- Kimi K3 has the larger published context window at 1.05M.

## Model Snapshot

| Property | Granite 4.2 8B | Kimi K3 |
|----------|----------|----------|
| Creator | IBM | Moonshot AI |
| Type | Open Weight | Pending |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 1.05M |
| Independent public score (not head-to-head) | 33.4 | 69.86 |
| Benchmarks Covered | 14 | 52 |
| Pricing (input/output) | $0.00 / $0.00 | $3.00 / $15.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 15.7 (Estimated · #113/127)
- Kimi K3 public-lane score: 69.5 (Supported · #10/127)

| Benchmark | Granite 4.2 8B | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 20.6% | 88.3% | Kimi K3 |
| τ³-bench results | 58.1% | Coming soon | Coming soon |
| BFCL v4 | 52.4% | Coming soon | Coming soon |
| BrowseComp | Coming soon | 91.2% | Coming soon |
| DeepSearchQA | Coming soon | 95.0% | Coming soon |
| Toolathlon-Verified | Coming soon | 73.2% | Coming soon |
| MCP Atlas | Coming soon | 84.2% | Coming soon |
| AutomationBench | Coming soon | 30.8% | Coming soon |
| JobBench | Coming soon | 52.9% | Coming soon |
| APEX-Agents | Coming soon | 37.6% | Coming soon |
| SpreadsheetBench 2 | Coming soon | 34.8% | Coming soon |
| DECK-Bench | Coming soon | 73.5% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 80.9% | Coming soon |
| ApprenticeBench | Coming soon | 18% | Coming soon |
| Hermes Index | Coming soon | 39.2% | Coming soon |
| Hermes Bench | Coming soon | 71.5% | Coming soon |
| MazeBench | Coming soon | 1% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 17.2 (Estimated · #125/150)
- Kimi K3 public-lane score: 58.9 (Supported · #22/150)

| Benchmark | Granite 4.2 8B | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 47.7% | Coming soon | Coming soon |
| SWE-bench Pro | 19.1% | Coming soon | Coming soon |
| SWE Multilingual | 30.8% | Coming soon | Coming soon |
| Terminal-Bench 2.1 | 20.6% | Coming soon | Coming soon |
| LiveCodeBench v6 | 73.2% | Coming soon | Coming soon |
| SciCode | 36.1% | Coming soon | Coming soon |
| DeepSWE | Coming soon | 67.5% | Coming soon |
| CursorBench 3.2 | Coming soon | 60.8% | Coming soon |
| FrontierSWE | Coming soon | 81.2% | Coming soon |
| ProgramBench | Coming soon | 77.8% | Coming soon |
| Kimi Code Bench v2 | Coming soon | 72.9% | Coming soon |
| sweMarathon | Coming soon | 42% | Coming soon |
| PostTrain Bench | Coming soon | 36.6% | Coming soon |
| MLS-Bench Lite | Coming soon | 48.3% | Coming soon |
| VulcanBench v3 | Coming soon | 73.7% | Coming soon |
| OpenHarmony Bench | Coming soon | 57.3% | Coming soon |
| FrontierSWE v2 | Coming soon | 25.9% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 87.2% | Coming soon |
| SWE-bench (Vals) | Coming soon | 93.4% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 32.0% | Coming soon |
| Bug Hunt Bench | Coming soon | 21.0 fixes | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 56.8 (Unranked · 2 rankable rows)
- Kimi K3 public-lane score: 70 (#21/28)

| Benchmark | Granite 4.2 8B | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | Coming soon | 94.50% | Coming soon |
| ARC-AGI-2 | Coming soon | 60.4% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: Coming soon
- Kimi K3 public-lane score: 92.6 (#1/54)

| Benchmark | Granite 4.2 8B | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| OfficeQA Pro | Coming soon | 63.3% | Coming soon |
| MMMU-Pro | Coming soon | 81.6% | Coming soon |
| MMMU-Pro w/ Python | Coming soon | 83.4% | Coming soon |
| CharXiv w/o tools | Coming soon | 84.8% | Coming soon |
| CharXiv | Coming soon | 91.3% | Coming soon |
| MathVision | Coming soon | 94.3% | Coming soon |
| MathVision w/ Python | Coming soon | 97.8% | Coming soon |
| BabyVision w/ Python | Coming soon | 85.7% | Coming soon |
| ZeroBench | Coming soon | 23.0% | Coming soon |
| ZeroBench w/ Python | Coming soon | 41.0% | Coming soon |
| WorldVQA ForceAnswer | Coming soon | 51.0% | Coming soon |
| OmniDocBench | Coming soon | 91.1% | Coming soon |
| PerceptionBench | Coming soon | 58.5% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 30.6 (Supported · #154/184)
- Kimi K3 public-lane score: 68.7 (Supported · #21/184)

| Benchmark | Granite 4.2 8B | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 64.1% | 93.5% | Kimi K3 |
| MMLU-Pro | 74.0% | Coming soon | Coming soon |
| GPQA-D | Coming soon | 93.5% | Coming soon |
| HLE | Coming soon | 56% | Coming soon |
| HLE w/o tools | Coming soon | 43.5% | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 92.9% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 88.0% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 86.5 (#41/146)
- Kimi K3 public-lane score: Coming soon

| Benchmark | Granite 4.2 8B | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.3% | Coming soon | Coming soon |
| Gray Swan IPI (15 attempts) | Coming soon | 52.7% | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: Coming soon
- Kimi K3 public-lane score: Coming soon

| Benchmark | Granite 4.2 8B | Kimi K3 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 86.7% | Coming soon | Coming soon |
| HMMT Feb 2025 | 78.3% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between Granite 4.2 8B and Kimi K3?

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

- [Granite 4.2 8B vs Granite 4.2 30B](/compare/granite-4-2-30b-vs-granite-4-2-8b)
- [Kimi K3 vs Granite 4.2 30B](/compare/granite-4-2-30b-vs-kimi-k3)
- [Granite 4.2 8B vs Granite 4.2 3B](/compare/granite-4-2-3b-vs-granite-4-2-8b)
- [Kimi K3 vs Granite 4.2 3B](/compare/granite-4-2-3b-vs-kimi-k3)

## Explore More

- [Granite 4.2 8B profile](/models/granite-4-2-8b)
- [Kimi K3 profile](/models/kimi-k3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)