# DeepSeek V3.2 (Thinking) vs GPT-5.1

> Side-by-side benchmark comparison for DeepSeek V3.2 (Thinking) and GPT-5.1 across agentic, coding, multimodal, knowledge, reasoning, multilingual, and math tasks.

- Canonical page: https://benchlm.ai/compare/deepseek-v3-2-thinking-vs-gpt-5-1
- 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: DeepSeek V3.2 (Thinking) and GPT-5.1 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.
- DeepSeek V3.2 (Thinking) has the lower published output-token price.
- GPT-5.1 has the larger published context window at 200K.

## Model Snapshot

| Property | DeepSeek V3.2 (Thinking) | GPT-5.1 |
|----------|----------|----------|
| Creator | DeepSeek | OpenAI |
| Type | Open Weight | Proprietary |
| Reasoning | Reasoning | Reasoning |
| Context | 128K | 200K |
| Independent public score (not head-to-head) | null | 57.21 |
| Benchmarks Covered | 2 | 3 |
| Pricing (input/output) | $0.55 / $2.19 | $1.25 / $10.00 |

## Category Breakdown

### Agentic

- Winner: Insufficient shared evidence
- DeepSeek V3.2 (Thinking) public-lane score: Coming soon
- GPT-5.1 public-lane score: Coming soon

| Benchmark | DeepSeek V3.2 (Thinking) | GPT-5.1 | Winner |
|-----------|-----------|-----------|--------|
| Gert Labs | Coming soon | 41.24% | Coming soon |

### Coding

- Winner: Insufficient shared evidence
- DeepSeek V3.2 (Thinking) public-lane score: 30.3 (Estimated · #95/150)
- GPT-5.1 public-lane score: 36.1 (Supported · #75/150)

| Benchmark | DeepSeek V3.2 (Thinking) | GPT-5.1 | Winner |
|-----------|-----------|-----------|--------|
| Vibe Code Bench | 5.11% | 24.61% | GPT-5.1 |

### Reasoning

- Winner: Insufficient shared evidence
- DeepSeek V3.2 (Thinking) public-lane score: Coming soon
- GPT-5.1 public-lane score: 80.8 (Unranked · 3 rankable rows)

| Benchmark | DeepSeek V3.2 (Thinking) | GPT-5.1 | Winner |
|-----------|-----------|-----------|--------|
| ARC-AGI-1 | Coming soon | 72.83% | Coming soon |

### Multimodal & Grounded

- Winner: Insufficient shared evidence
- DeepSeek V3.2 (Thinking) public-lane score: Coming soon
- GPT-5.1 public-lane score: 75.7 (Unranked · 1 rankable row)

### Knowledge

- Winner: Insufficient shared evidence
- DeepSeek V3.2 (Thinking) public-lane score: Coming soon
- GPT-5.1 public-lane score: 53.3 (Estimated · #67/184)

### Instruction Following

- Winner: Insufficient shared evidence
- DeepSeek V3.2 (Thinking) public-lane score: Coming soon
- GPT-5.1 public-lane score: 89.4 (#30/148)

### Mathematics

- Winner: Insufficient shared evidence
- DeepSeek V3.2 (Thinking) public-lane score: Coming soon
- GPT-5.1 public-lane score: Coming soon

| Benchmark | DeepSeek V3.2 (Thinking) | GPT-5.1 | Winner |
|-----------|-----------|-----------|--------|
| AIME 2025 | 93.1% | Coming soon | Coming soon |

## FAQ

### Is there enough evidence to pick between DeepSeek V3.2 (Thinking) and GPT-5.1?

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

- [DeepSeek V3.2 (Thinking) vs DeepSeek V3.2](/compare/deepseek-v3-2-vs-deepseek-v3-2-thinking)
- [GPT-5.1 vs DeepSeek V3.2](/compare/deepseek-v3-2-vs-gpt-5-1)
- [DeepSeek V3.2 (Thinking) vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-deepseek-v3-2-thinking)
- [GPT-5.1 vs Claude Opus 5.5](/compare/claude-opus-5-5-vs-gpt-5-1)

## Explore More

- [DeepSeek V3.2 (Thinking) profile](/models/deepseek-v3-2-thinking)
- [GPT-5.1 profile](/models/gpt-5-1)
- [Compare Pricing](/llm-pricing)
- [Alternative Finder](/tools/alternative-finder)
- [LLM Selector](/tools/llm-selector)
- [Overall Rankings](/best/overall)