# DeepSeek-V3.2-Speciale vs GPT-5.1-Codex

> DeepSeek-V3.2-Speciale and GPT-5.1-Codex score almost the same on the Noometry Index (39.1 vs 38.2), so choose on price, context window or the category you care about most.

- Canonical page: https://noometry.com/compare/deepseek-v3-2-speciale-vs-gpt-5-1-codex
- Last updated: 2026-10-10
- Shared benchmarks: 0

## Summary

- DeepSeek-V3.2-Speciale is cheaper at $0.58 / $1.68 per million input/output tokens, against $1.25 / $10 for GPT-5.1-Codex.
- GPT-5.1-Codex accepts more context: 400K tokens versus 128K.
- DeepSeek-V3.2-Speciale has downloadable open weights; the other is API-only.

## Snapshot

| | DeepSeek-V3.2-Speciale | GPT-5.1-Codex |
|---|---|---|
| Provider | DeepSeek | OpenAI |
| Noometry Index | 39.1 | 38.2 |
| Rank | 159 | 178 |
| Context | 128K | 400K |
| Input $/M | $0.58 | $1.25 |
| Output $/M | $1.68 | $10 |
| Weights | Open | Proprietary |

## Coding

- DeepSeek-V3.2-Speciale: 39.9 (#136)
- GPT-5.1-Codex: 41.7 (#107)

| Benchmark | DeepSeek-V3.2-Speciale | GPT-5.1-Codex |
|---|---|---|
| SWE-bench Verified (bash only) | — | 66% |
| LMArena WebDev | — | 1337 |
| WeirdML | 46.7% | — |
| ALE-Bench | — | 1,245 |

## Agentic & Tool Use

- DeepSeek-V3.2-Speciale: —
- GPT-5.1-Codex: 37.8 (#32)

| Benchmark | DeepSeek-V3.2-Speciale | GPT-5.1-Codex |
|---|---|---|
| Terminal-Bench | — | 60.4% |
| METR Time Horizons | — | 70.8% |

## Reasoning

- DeepSeek-V3.2-Speciale: 32.1 (#65)
- GPT-5.1-Codex: —

| Benchmark | DeepSeek-V3.2-Speciale | GPT-5.1-Codex |
|---|---|---|
| SimpleBench | 52.6% | — |

## Math

- DeepSeek-V3.2-Speciale: —
- GPT-5.1-Codex: 29.3 (#218)

| Benchmark | DeepSeek-V3.2-Speciale | GPT-5.1-Codex |
|---|---|---|
| ProofBench | — | 9% |

## Writing & Preference

- DeepSeek-V3.2-Speciale: 46.1 (#217)
- GPT-5.1-Codex: —

| Benchmark | DeepSeek-V3.2-Speciale | GPT-5.1-Codex |
|---|---|---|
| EQ-Bench Creative Writing | 1276 | — |

## FAQ

### Is DeepSeek-V3.2-Speciale better than GPT-5.1-Codex?

DeepSeek-V3.2-Speciale and GPT-5.1-Codex score almost the same on the Noometry Index (39.1 vs 38.2), so choose on price, context window or the category you care about most.

### Which is cheaper, DeepSeek-V3.2-Speciale or GPT-5.1-Codex?

DeepSeek-V3.2-Speciale is cheaper. It lists at $0.58 per million input tokens and $1.68 per million output tokens; GPT-5.1-Codex lists at $1.25 and $10.

### Is DeepSeek-V3.2-Speciale or GPT-5.1-Codex better for coding?

GPT-5.1-Codex scores higher on coding benchmarks: 41.7 versus 39.9 in the Noometry coding category.

### Which has the bigger context window?

GPT-5.1-Codex does, with 400K tokens against 128K.

### How many benchmarks do DeepSeek-V3.2-Speciale and GPT-5.1-Codex share?

0 benchmarks have published results for both models. DeepSeek-V3.2-Speciale has 3 scored results on Noometry and GPT-5.1-Codex has 6.