# Granite 4.2 8B vs Grok 4.3

> Side-by-side benchmark comparison for Granite 4.2 8B and Grok 4.3 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/granite-4-2-8b-vs-grok-4-3
- Last updated: October 15, 2026

- Shared sourced benchmarks: 0
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

No benchmark verdict yet: there is no shared sourced benchmark row for Granite 4.2 8B and Grok 4.3.

## Summary

- Granite 4.2 8B and Grok 4.3 do not currently share a sourced benchmark row. The mirror therefore compares metadata, pricing, context windows, and each model's separately reported coverage without naming a benchmark winner.

## Model Snapshot

| Property | Granite 4.2 8B | Grok 4.3 |
|----------|----------|----------|
| Creator | IBM | xAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 1M |
| Independent public score (not head-to-head) | 33.4 | 53.06 |
| Benchmarks Covered | 14 | 9 |
| Pricing (input/output) | $0.00 / $0.00 | $1.25 / $2.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 15.7 (Estimated · #113/127)
- Grok 4.3 public-lane score: 28.5 (Supported · #95/127)

| Benchmark | Granite 4.2 8B | Grok 4.3 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 20.6% | Coming soon | Coming soon |
| τ³-bench results | 58.1% | Coming soon | Coming soon |
| BFCL v4 | 52.4% | Coming soon | Coming soon |
| Gert Labs | Coming soon | 43.86% | Coming soon |
| ResearchClawBench | Coming soon | 12.4% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 41.9% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 17.2 (Estimated · #125/150)
- Grok 4.3 public-lane score: 26.4 (Supported · #104/150)

| Benchmark | Granite 4.2 8B | Grok 4.3 | 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 |
| LiveCodeBench (Vals) | Coming soon | 84.5% | Coming soon |
| SWE-bench (Vals) | Coming soon | 71.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 56.8 (Unranked · 2 rankable rows)
- Grok 4.3 public-lane score: 70 (Unranked · 2 rankable rows)

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: Coming soon
- Grok 4.3 public-lane score: 78.8 (#20/54)

### Knowledge

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 30.6 (Supported · #154/184)
- Grok 4.3 public-lane score: 55 (Supported · #61/184)

| Benchmark | Granite 4.2 8B | Grok 4.3 | Winner |
|-----------|-----------|-----------|--------|
| GPQA | 64.1% | Coming soon | Coming soon |
| MMLU-Pro | 74.0% | Coming soon | Coming soon |
| GPQA Diamond (Vals) | Coming soon | 91.4% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 85.8% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: 86.5 (#41/146)
- Grok 4.3 public-lane score: 97.1 (#1/146)

| Benchmark | Granite 4.2 8B | Grok 4.3 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 79.3% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Granite 4.2 8B public-lane score: Coming soon
- Grok 4.3 public-lane score: 51.4 (Unranked · 2 rankable rows)

| Benchmark | Granite 4.2 8B | Grok 4.3 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 86.7% | Coming soon | Coming soon |
| HMMT Feb 2025 | 78.3% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 42.807% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 14.634% | Coming soon |

## FAQ

### Can I compare Granite 4.2 8B and Grok 4.3 on BenchLM yet?

Not fully yet. BenchLM is tracking both models, but sourced benchmark coverage is still incomplete for a fair score-level comparison.

### Why does this page show "coming soon" values?

BenchLM only calls winners when public benchmark coverage is available on both sides of the comparison.

## Related Comparisons

- [Granite 4.2 8B vs Granite 4.2 30B](/compare/granite-4-2-30b-vs-granite-4-2-8b)
- [Grok 4.3 vs Granite 4.2 30B](/compare/granite-4-2-30b-vs-grok-4-3)
- [Granite 4.2 8B vs Granite 4.2 3B](/compare/granite-4-2-3b-vs-granite-4-2-8b)
- [Grok 4.3 vs Granite 4.2 3B](/compare/granite-4-2-3b-vs-grok-4-3)

## Explore More

- [Granite 4.2 8B profile](/models/granite-4-2-8b)
- [Grok 4.3 profile](/models/grok-4-3)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)