# Claude 4 Sonnet vs Gemini 3.1 Flash-Lite

> Side-by-side benchmark comparison for Claude 4 Sonnet and Gemini 3.1 Flash-Lite across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/claude-4-sonnet-vs-gemini-3-1-flash-lite
- Last updated: October 17, 2026

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

## Quick Verdict

Evidence is too thin for a benchmark verdict: Claude 4 Sonnet and Gemini 3.1 Flash-Lite 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.
- Gemini 3.1 Flash-Lite has the lower published output-token price.
- Gemini 3.1 Flash-Lite has the larger published context window at 1M.

## Model Snapshot

| Property | Claude 4 Sonnet | Gemini 3.1 Flash-Lite |
|----------|----------|----------|
| Creator | Anthropic | Google |
| Type | Proprietary | Proprietary |
| Reasoning | Non-Reasoning | Non-Reasoning |
| Context | 200K | 1M |
| Independent public score (not head-to-head) | 38.08 | 46.96 |
| Benchmarks Covered | 4 | 11 |
| Pricing (input/output) | $3.00 / $15.00 | $0.25 / $1.50 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: 27.4 (Estimated · #100/128)

| Benchmark | Claude 4 Sonnet | Gemini 3.1 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | 39.66% | 38.46% | Claude 4 Sonnet |
| JobBench | 18.4% | Coming soon | Coming soon |
| Terminal-Bench 2.1 (Vals) | Coming soon | 34.1% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: 27.2 (Estimated · #101/150)

| Benchmark | Claude 4 Sonnet | Gemini 3.1 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| SWE-bench Verified | 72.7% | Coming soon | Coming soon |
| Vibe Code Bench | Coming soon | 0.00% | Coming soon |
| LiveCodeBench (Vals) | Coming soon | 80.1% | Coming soon |
| SWE-bench (Vals) | Coming soon | 62.8% | Coming soon |

### Reasoning

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 56.1 (Unranked · 2 rankable rows)
- Gemini 3.1 Flash-Lite public-lane score: Coming soon

| Benchmark | Claude 4 Sonnet | Gemini 3.1 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| JevBench 1.4 | Coming soon | 14.26 | Coming soon |
| JevBench 1.5 | Coming soon | 19.58 | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 56.4 (Unranked · 1 rankable row)
- Gemini 3.1 Flash-Lite public-lane score: 42 (Unranked · 1 rankable row)

| Benchmark | Claude 4 Sonnet | Gemini 3.1 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| CharXiv | Coming soon | 73.2% | Coming soon |

### Knowledge

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 37.7 (Estimated · #124/184)
- Gemini 3.1 Flash-Lite public-lane score: 46.9 (Estimated · #89/184)

| Benchmark | Claude 4 Sonnet | Gemini 3.1 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| GPQA Diamond (Vals) | Coming soon | 81.1% | Coming soon |
| MMLU-Pro (Vals) | Coming soon | 86.2% | Coming soon |

### Instruction Following

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: 53.5 (#86/148)
- Gemini 3.1 Flash-Lite public-lane score: Coming soon

### Mathematics

- Winner: Insufficient shared evidence
- Claude 4 Sonnet public-lane score: Coming soon
- Gemini 3.1 Flash-Lite public-lane score: 44 (Unranked · 1 rankable row)

| Benchmark | Claude 4 Sonnet | Gemini 3.1 Flash-Lite | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 33.1% | Coming soon | Coming soon |
| FrontierMath v2 (Tiers 1-3) | Coming soon | 27.719% | Coming soon |

## FAQ

### Is there enough evidence to pick between Claude 4 Sonnet and Gemini 3.1 Flash-Lite?

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

- [Claude 4 Sonnet vs Claude Opus 5.5](/compare/claude-4-sonnet-vs-claude-opus-5-5)
- [Gemini 3.1 Flash-Lite vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gemini-3-1-flash-lite)
- [Claude 4 Sonnet vs GPT-6.1 Sol](/compare/claude-4-sonnet-vs-gpt-6-1-sol)
- [Gemini 3.1 Flash-Lite vs GPT-6.1 Sol](/compare/gemini-3-1-flash-lite-vs-gpt-6-1-sol)

## Explore More

- [Claude 4 Sonnet profile](/models/claude-4-sonnet)
- [Gemini 3.1 Flash-Lite profile](/models/gemini-3-1-flash-lite)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)