# Flint vs Grok 4.5

> Side-by-side benchmark comparison for Flint and Grok 4.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/flint-40b-a2-5b-vs-grok-4-5
- Last updated: October 20, 2026

- Shared sourced benchmarks: 1
- HTML indexing: indexable
- Ranking lane: BenchAlign v5.8

## Quick Verdict

Evidence is too thin for a benchmark verdict: Flint and Grok 4.5 share only 1 sourced benchmark row.

## Summary

- Only 1 shared sourced benchmark row is available. That is not enough for a broad capability verdict, so this mirror does not name an overall winner.
- Flint has the lower published output-token price.
- Grok 4.5 has the larger published context window at 500K.

## Model Snapshot

| Property | Flint | Grok 4.5 |
|----------|----------|----------|
| Creator | Recursive | xAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 256K | 500K |
| Independent public score (not head-to-head) | null | 63.3 |
| Benchmarks Covered | 5 | 19 |
| Pricing (input/output) | $0.00 / $0.00 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Flint public-lane score: Coming soon
- Grok 4.5 public-lane score: 58.8 (Supported · #32/132)

| Benchmark | Flint | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.1 | 54.9% | 83.3% | Grok 4.5 |
| Terminal-Bench 3.0 | Coming soon | 15.7% | Coming soon |
| deepSwe | Coming soon | 53% | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 67.8% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Flint public-lane score: Coming soon
- Grok 4.5 public-lane score: 55.6 (Supported · #31/153)

| Benchmark | Flint | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 74.2% | Coming soon | Coming soon |
| LiveCodeBench v6 | 80.3% | Coming soon | Coming soon |
| SWE-bench Pro | Coming soon | 64.7% | Coming soon |
| SWE Multilingual | Coming soon | 78% | Coming soon |
| Terminal-Bench 2.1 | Coming soon | 83.3% | Coming soon |
| CursorBench 3.2 | Coming soon | 66.7% | Coming soon |
| VulcanBench v3 | Coming soon | 89.9% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 87.4% | Coming soon |
| SWE-bench (Vals) | Coming soon | 86.6% | Coming soon |
| PostTrainBench v1.1 | Coming soon | 23.4% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Flint public-lane score: Coming soon
- Grok 4.5 public-lane score: 54.1 (#27/27)

| Benchmark | Flint | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-2 | Coming soon | 52.6% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.3% | Coming soon |
| ARC-AGI-1 | Coming soon | 85.67% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Flint public-lane score: Coming soon
- Grok 4.5 public-lane score: 82.9 (Unranked · 1 rankable row)

### Knowledge

- Winner: Insufficient shared evidence
- Flint public-lane score: Coming soon
- Grok 4.5 public-lane score: 67.4 (Supported · #28/187)

| Benchmark | Flint | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | Coming soon | 92.9% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 89.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Flint public-lane score: 94.7 (#3/152)
- Grok 4.5 public-lane score: Coming soon

| Benchmark | Flint | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| IFBench | 89.2% | Coming soon | Coming soon |
| IFEval | 95.1% | Coming soon | Coming soon |

### Mathematics

- Winner: Insufficient shared evidence
- Flint public-lane score: Coming soon
- Grok 4.5 public-lane score: 62.9 (Unranked · 2 rankable rows)

| Benchmark | Flint | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| FrontierMath v2 (Tiers 1-3) | Coming soon | 57.193% | Coming soon |
| FrontierMath v2 (Tier 4) | Coming soon | 24.390% | Coming soon |

## FAQ

### Is there enough evidence to pick between Flint and Grok 4.5?

Not yet. The models share only 1 sourced benchmark row, 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

- [Flint vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-flint-40b-a2-5b)
- [Grok 4.5 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-grok-4-5)
- [Flint vs GPT-6.1 Sol](/compare/flint-40b-a2-5b-vs-gpt-6-1-sol)
- [Grok 4.5 vs GPT-6.1 Sol](/compare/gpt-6-1-sol-vs-grok-4-5)

## Explore More

- [Flint profile](/models/flint-40b-a2-5b)
- [Grok 4.5 profile](/models/grok-4-5)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)