Grok 4.1 Fast is $0.05 cheaper per 1M input tokens (20.6% lower; 1.26x difference).
API cost decision in 10 seconds
🔥DeepSeek V3.2 vs 🔥Grok 4.1 Fast
Pick DeepSeek V3.2 for lower cost; pick Grok 4.1 Fast only if the larger context window matters more.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick DeepSeek V3.2 for lower cost; pick Grok 4.1 Fast only if the larger context window matters more.
On the standard 1M input plus 500K output workload, DeepSeek V3.2 is estimated at $0.44 vs $0.45 for Grok 4.1 Fast, saving $0.009 (2% lower).
Cost-first pickDeepSeek V3.2
Context-first pickGrok 4.1 Fast
Sample savings$0.0092%
10x traffic gap$0.09
Grok 4.1 Fast has more context, but DeepSeek V3.2 saves $0.009 on the standard workload. At 10x that traffic, the same price gap is about $0.09. Use the calculator below to replace the sample workload with your own token volume.
DeepSeek V3.2 is $0.12 cheaper per 1M output tokens (24.4% lower; 1.32x difference).
Grok 4.1 Fast has 1.87M more context (15.3x larger).
DeepSeek V3.2 is $0.009 cheaper on the standard workload (2% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
Grok 4.1 Fast has the lower input price; DeepSeek V3.2 has the lower output price; Grok 4.1 Fast offers the larger context window. For the 1M input plus 500K output sample, DeepSeek V3.2 is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.44 for DeepSeek V3.2 and $0.45 for Grok 4.1 Fast.
Choose DeepSeek V3.2 when you care most about lower output-token price.
Choose Grok 4.1 Fast when you care most about lower input-token price, and larger context window.
- On the standard 1M input plus 500K output workload, DeepSeek V3.2 is estimated at $0.44 vs $0.45 for Grok 4.1 Fast, saving $0.009 (2% lower).
- DeepSeek V3.2 is $0.009 cheaper on the standard workload (2% lower).
- Grok 4.1 Fast is $0.05 cheaper per 1M input tokens (20.6% lower; 1.26x difference).
- DeepSeek V3.2 is $0.12 cheaper per 1M output tokens (24.4% lower; 1.32x difference).
- Grok 4.1 Fast has 1.87M more context (15.3x larger).
| Feature | 🔥DeepSeek V3.2 (DeepSeek) | 🔥Grok 4.1 Fast (xAI) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.252 | $0.2 |
| Completion Price per 1M tokens | $0.378 | $0.5 |
| Sample Workload Cost 1M input + 500K output | $0.44 | $0.45 |
| Context Window | 131.07K | 2M |
| Release Date | 2025-12-01 | 2025-11-19 |
| Popularity Rank current rank | #7 | #18 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | DeepSeek V3.2 | On the standard 1M input plus 500K output workload, DeepSeek V3.2 is estimated at $0.44 vs $0.45 for Grok 4.1 Fast, saving $0.009 (2% lower). |
| High-volume input processing | Grok 4.1 Fast | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | DeepSeek V3.2 | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Grok 4.1 Fast | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
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