Model comparison
DeepSeek-V3.2-Speciale vs Grok 4 Fast
- Input
- $0.28 / 1M tokens (cache miss)
- Output
- $0.42 / 1M tokens
- Context
- 128K
- Released
- 2025-12-01
- Input
- $0.20 / 1M tokens
- Output
- $0.50 / 1M tokens
- Context
- 2M
- Released
- 2025-09
DeepSeek-V3.2-Speciale scores higher on 3 of the 4 benchmarks both models report; Grok 4 Fast is cheaper on input tokens ($0.2 vs $0.3 per 1M, 1.4×); Grok 4 Fast has the larger context window (2M vs 128K); DeepSeek-V3.2-Speciale ships open weights while Grok 4 Fast is API-only.
Specs and pricing side by side
| Spec | DeepSeek-V3.2-Speciale | Grok 4 Fast |
|---|---|---|
| Maker | DeepSeek | xAI (Grok) |
| Released | 2025-12-01 | 2025-09 |
| Context window | 128K | 2M |
| Max output | 128K | not published |
| Input price | $0.28 / 1M tokens (cache miss) | $0.20 / 1M tokens |
| Output price | $0.42 / 1M tokens | $0.50 / 1M tokens |
| Parameters | 671B total / 37B active (MoE) | Undisclosed |
| License | MIT | Proprietary |
| Weights | Open weights | API only |
| Modalities | Text | Text, Vision |
| Knowledge cutoff | Not disclosed | Not publicly disclosed |
Benchmarks both models report
| Benchmark | DeepSeek-V3.2-Speciale | Grok 4 Fast |
|---|---|---|
| AIME 2025 | 96% | 92% |
| LiveCodeBench | 88.7% | 80% |
| GPQA Diamond | 85.7% | 85.7% |
| Humanity's Last Exam | 30.6% | 20% |
Scores are as published by each maker or its cited source; harness, reasoning effort and date can differ between rows, so treat small gaps as ties. Sources are listed on each model page.
Which one should you pick?
Pick DeepSeek-V3.2-Speciale if…
- You care about AIME 2025, LiveCodeBench, Humanity's Last Exam (it scores higher on 3 shared benchmarks).
- You want to self-host or fine-tune (open weights, MIT).
- Your use case is: solving competition-grade mathematics and writing formal mathematical proofs.
Pick Grok 4 Fast if…
- Cost matters: input tokens cost 1.4× less ($0.2 vs $0.3 per 1M).
- You need the longer context (2M vs 128K).
- You need Vision input, which DeepSeek-V3.2-Speciale lacks.
- Your use case is: high-volume production tasks where cost per answer is the deciding factor.
FAQ
Which is better, DeepSeek-V3.2-Speciale or Grok 4 Fast?
DeepSeek-V3.2-Speciale scores higher on 3 of the 4 benchmarks both models report; Grok 4 Fast is cheaper on input tokens ($0.2 vs $0.3 per 1M, 1.4×); Grok 4 Fast has the larger context window (2M vs 128K); DeepSeek-V3.2-Speciale ships open weights while Grok 4 Fast is API-only. The better pick depends on whether you value benchmark scores, price per token, context length or openness for your workload.
How much cheaper is Grok 4 Fast?
DeepSeek-V3.2-Speciale: $0.28 / 1M tokens (cache miss) input, $0.42 / 1M tokens output. Grok 4 Fast: $0.20 / 1M tokens input, $0.50 / 1M tokens output (list API prices as published by each maker).
What are the context windows of DeepSeek-V3.2-Speciale and Grok 4 Fast?
DeepSeek-V3.2-Speciale offers 128K with up to 128K output; Grok 4 Fast offers 2M.
Is DeepSeek-V3.2-Speciale newer than Grok 4 Fast?
DeepSeek-V3.2-Speciale was released 2025-12-01; Grok 4 Fast was released 2025-09.
Go deeper
- DeepSeek-V3.2-Speciale: full specs, pricing and benchmarks
- Grok 4 Fast: full specs, pricing and benchmarks
- deepseek v3 2 speciale vs deepseek v3 2 exp
- grok 4 fast vs deepseek r1 0528
- grok 4 1 fast vs grok 4 fast
- mistral small 4 vs deepseek v3 2 speciale
- deepseek v3 2 exp vs grok 4 fast
- gpt 5 2 pro vs deepseek v3 2 speciale
- All model comparisons