# Gemini 3.5 Flash-Lite vs Grok 4.5

> Side-by-side benchmark comparison for Gemini 3.5 Flash-Lite and Grok 4.5 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/gemini-3-5-flash-lite-vs-grok-4-5
- Last updated: September 4, 2026

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

## Quick Verdict

Pick Grok 4.5 if you want the stronger benchmark profile. Gemini 3.5 Flash-Lite only makes more sense when its price, context window, or workload-specific category wins matter more than the overall score.

## Summary

- Grok 4.5 leads overall 68.64 to 60.5.
- The clearest category separation is in agentic, where the averages are 43.4 for Gemini 3.5 Flash-Lite and 62.9 for Grok 4.5.
- The biggest single benchmark swing is Terminal-Bench 2.0 in Agentic, with scores of 54% and 83.3%.
- Gemini 3.5 Flash-Lite is the cheaper option on output tokens, which matters if you expect large responses or heavy interactive use.
- Gemini 3.5 Flash-Lite also has the larger context window at 1M.

## Model Snapshot

| Property | Gemini 3.5 Flash-Lite | Grok 4.5 |
|----------|----------|----------|
| Creator | Google | xAI |
| Type | Proprietary | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 1M | 500K |
| Overall Score | 60.5 | 68.64 |
| Benchmarks Covered | 10 | 15 |
| Pricing (input/output) | $0.30 / $2.50 | $2.00 / $6.00 |

## Category Breakdown

### Agentic

- Winner: Coming soon
- Gemini 3.5 Flash-Lite public-lane score: 43.4 (Estimated · #104/151)
- Grok 4.5 public-lane score: 62.9 (Supported · #17/151)

| Benchmark | Gemini 3.5 Flash-Lite | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 54% | 83.3% | Grok 4.5 |
| OSWorld-Verified | 74% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | 50.2% | 67.8% | Grok 4.5 |
| Terminal-Bench 3.0 | Coming soon | 15.7% | Coming soon |
| deepSwe | Coming soon | 53% | Coming soon |

### Coding

- Winner: Grok 4.5
- Gemini 3.5 Flash-Lite public-lane score: 43.6 (Supported · #121/183)
- Grok 4.5 public-lane score: 62.6 (Supported · #17/183)

| Benchmark | Gemini 3.5 Flash-Lite | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| Terminal-Bench 2.0 | 54.0% | 83.3% | Grok 4.5 |
| SWE-bench Pro | 54.2% | 64.7% | Grok 4.5 |
| LiveCodeBench (Vals) | 79.0% | 87.4% | Grok 4.5 |
| SWE-bench (Vals) | 75.0% | 86.6% | Grok 4.5 |
| SWE Multilingual | Coming soon | 78% | Coming soon |
| cursorBench32 | Coming soon | 66.7% | Coming soon |
| VulcanBench v3 | Coming soon | 89.9% | Coming soon |

### Multimodal & Grounded

- Winner: Coming soon
- Gemini 3.5 Flash-Lite public-lane score: 76.1 (#16/48)
- Grok 4.5 public-lane score: 78.1 (Unranked · 1 rankable row)

### Reasoning

- Winner: Coming soon
- Gemini 3.5 Flash-Lite public-lane score: 60.8 (Unranked · 3 rankable rows)
- Grok 4.5 public-lane score: 44.3 (#22/22)

| Benchmark | Gemini 3.5 Flash-Lite | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| MRCRv2 | 72.2% | Coming soon | Coming soon |
| ARC-AGI-2 | Coming soon | 52.6% | Coming soon |
| ARC-AGI-3 | Coming soon | 0.3% | Coming soon |

### Knowledge

- Winner: Grok 4.5
- Gemini 3.5 Flash-Lite public-lane score: 53 (Supported · #71/181)
- Grok 4.5 public-lane score: 70 (Supported · #14/181)

| Benchmark | Gemini 3.5 Flash-Lite | Grok 4.5 | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | 83.8% | 92.9% | Grok 4.5 |
| MMLU-Pro (Vals) | 85.8% | 89.2% | Grok 4.5 |

## FAQ

### Which is better overall, Gemini 3.5 Flash-Lite or Grok 4.5?

Grok 4.5 is ahead overall on BenchLM right now.

### Where is the biggest gap between Gemini 3.5 Flash-Lite and Grok 4.5?

The widest category gap is in agentic, where the averages are 43.4 for Gemini 3.5 Flash-Lite and 62.9 for Grok 4.5.

### How many benchmarks does Gemini 3.5 Flash-Lite cover on BenchLM?

Gemini 3.5 Flash-Lite currently has 10 sourced benchmark scores on BenchLM.

### How many benchmarks does Grok 4.5 cover on BenchLM?

Grok 4.5 currently has 15 sourced benchmark scores on BenchLM.

## Related Comparisons

- [Gemini 3.5 Flash-Lite vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-gemini-3-5-flash-lite)
- [Grok 4.5 vs Claude Fable 5.1](/compare/claude-fable-5-1-vs-grok-4-5)
- [Gemini 3.5 Flash-Lite vs GPT-6 Astra](/compare/gemini-3-5-flash-lite-vs-gpt-6-astra)
- [Grok 4.5 vs GPT-6 Astra](/compare/gpt-6-astra-vs-grok-4-5)

## Explore More

- [Gemini 3.5 Flash-Lite profile](/models/gemini-3-5-flash-lite)
- [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)