Compare / head-to-head
DeepSeek V3.2vsGPT-5.1
GPT-5.1 leads 2 of 3 shared benchmarks. GPT-5.1 has the larger context window (400K tokens).
Benchmarks from cited public sources; pricing from official pages; status from official provider feeds.
Shared benchmarks
1 – 2
GPT-5.1 leads
Cheaper per token
—
list price, input + output
Larger context
GPT-5.1
400K tokens
Provider uptime (30d)
100% · 94.8387%
DeepSeek · OpenAI
DeepSeek V3.2
DeepSeek · released 2025-12-01
text
- Context
- 131K
- Max out
- 66K
- Input /1M
- —
- Output /1M
- —
- Cached /1M
- —
- Scores
- 8 · 7 core
Quality
Benchmark matrix
3 shared · 4 only DeepSeek V3.2 · 3 only GPT-5.1| Benchmark | DeepSeek V3.2 | GPT-5.1 | Δ | Edge |
|---|---|---|---|---|
| Reported by both · 3 | ||||
| GPQA Diamond | 82.4% ↗ | 87.6% ↗epoch | -5.2 pt | GPT-5.1 |
| AIME 2025 | 93.1% ↗ | 94.2% ↗matharena ⚠ | -1.1 pt | GPT-5.1 |
| LMArena Elo | 1424.8 ↗ | 1422.6 ↗ | +2.2 | DeepSeek V3.2 |
| Only DeepSeek V3.2 reports · 4 | ||||
| SWE-bench Verified | 73.1% ↗ | not reported | — | — |
| MMLU-Pro | 85% ↗ | not reported | — | — |
| AIME 2026 | 94.2% ↗matharena | not reported | — | — |
| Humanity's Last Exam (no tools) | 25.1% ↗ | not reported | — | — |
| Only GPT-5.1 reports · 3 | ||||
| OTIS Mock AIME 2024-2025 (Epoch AI run) | not reported | 88.6% ↗epoch | — | — |
| SimpleQA Verified | not reported | 48% ↗epoch | — | — |
| SWE-bench Verified (Epoch AI run) | not reported | 68% ↗epoch | — | — |
Scores tagged "epoch" or "matharena" are independent runs, used only where the lab has not published its own; ⚠ marks rows MathArena flags as released after the competition. Higher is better on every row. Δ is DeepSeek V3.2 minus GPT-5.1 in the benchmark's own unit. "Not reported" means the lab has not published that figure; it is not a zero. ↗ opens the source.
Specs & pricing
Side by side
Official pricing pages and model cards| Spec | DeepSeek V3.2 | GPT-5.1 | Edge |
|---|---|---|---|
| Context window | 131K tokens | 400K tokens | GPT-5.1 |
| Max output | 66K tokens | 128K tokens | GPT-5.1 |
| Input price / 1M | — | $1.25 ↗ | — |
| Output price / 1M | — | $10 ↗ | — |
| Cached input / 1M | — | $0.125 ↗ | — |
| Input + output / 1M Lower is cheaper. List prices; batch, tool and regional fees excluded. | — | $11.25 | — |
| Modalities | text | text · vision | GPT-5.1 |
| Released | 2025-12-01 | 2025-11-13 | — |
| Cited benchmark scores | 8 | 6 | — |
Reliability
Provider status
Last 60 days · refreshed daily on this page · live on /statusMore matchups
DeepSeek V3.2 vs …
Models sharing the most benchmarksMore matchups
GPT-5.1 vs …
Models sharing the most benchmarksBuilt by Respan
Which one wins on your data?
Public benchmarks are a starting point. Run DeepSeek V3.2 and GPT-5.1 on your own prompts with Respan evals, or route to either through one gateway key with automatic failover.