Qwen3.8 27B is $0.72 cheaper per 1M input tokens (64.3% lower; 2.81x difference).
API cost decision in 10 seconds
NewQwen3.8 27B vs NewDeepSeek V4 Pro 0813
Pick Qwen3.8 27B for lower cost; pick DeepSeek V4 Pro 0813 only if the larger context window matters more.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Qwen3.8 27B for lower cost; pick DeepSeek V4 Pro 0813 only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Qwen3.8 27B is estimated at $1.9 vs $2.81 for DeepSeek V4 Pro 0813, saving $0.91 (32.3% lower).
Cost-first pickQwen3.8 27B
Context-first pickDeepSeek V4 Pro 0813
Sample savings$0.9132.3%
10x traffic gap$9.05
DeepSeek V4 Pro 0813 has more context, but Qwen3.8 27B saves $0.91 on the standard workload. At 10x that traffic, the same price gap is about $9.05. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Qwen3.8 27B stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Qwen3.8 27B | DeepSeek V4 Pro 0813 |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Qwen3.8 27B | $3.5 | $7.29 |
| Balanced workload | 1M input + 1M output | Qwen3.8 27B | $3.4 | $4.49 |
| Output-heavy chatbot | 1M input + 5M output | Qwen3.8 27B | $15.4 | $17.95 |
Qwen3.8 27B is $0.37 cheaper per 1M output tokens (10.9% lower; 1.12x difference).
DeepSeek V4 Pro 0813 has 48.58K more context (1.05x larger).
Qwen3.8 27B is $0.91 cheaper on the standard workload (32.3% 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
Qwen3.8 27B has the lower input price; Qwen3.8 27B has the lower output price; DeepSeek V4 Pro 0813 offers the larger context window. For the 1M input plus 500K output sample, Qwen3.8 27B is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.9 for Qwen3.8 27B and $2.81 for DeepSeek V4 Pro 0813.
Choose Qwen3.8 27B when you care most about lower input-token price, and lower output-token price.
Choose DeepSeek V4 Pro 0813 when you care most about larger context window.
- On the standard 1M input plus 500K output workload, Qwen3.8 27B is estimated at $1.9 vs $2.81 for DeepSeek V4 Pro 0813, saving $0.91 (32.3% lower).
- Qwen3.8 27B is $0.91 cheaper on the standard workload (32.3% lower).
- Qwen3.8 27B is $0.72 cheaper per 1M input tokens (64.3% lower; 2.81x difference).
- Qwen3.8 27B is $0.37 cheaper per 1M output tokens (10.9% lower; 1.12x difference).
- DeepSeek V4 Pro 0813 has 48.58K more context (1.05x larger).
| Feature | NewQwen3.8 27B (Qwen) | NewDeepSeek V4 Pro 0813 (DeepSeek) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.4 | $1.122 |
| Completion Price per 1M tokens | $3 | $3.366 |
| Sample Workload Cost 1M input + 500K output | $1.9 | $2.81 |
| Context Window | 1M | 1.05M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Qwen3.8 27B | On the standard 1M input plus 500K output workload, Qwen3.8 27B is estimated at $1.9 vs $2.81 for DeepSeek V4 Pro 0813, saving $0.91 (32.3% lower). |
| High-volume input processing | Qwen3.8 27B | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Qwen3.8 27B | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | DeepSeek V4 Pro 0813 | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Qwen3 Next 80B A3B Instruct (free) can replace Qwen3.8 27B when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.8 27B when lower sample workload cost matters most: $0.
- Qwen3.7 Flash can replace Qwen3.8 27B when lower sample workload cost matters most: $0.1.
- Qwen3 30B A3B Instruct 2507 can replace Qwen3.8 27B when lower sample workload cost matters most: $0.14.
- Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- DeepSeek V4 Flash 0731 offers 1.31M context with $0.17 sample workload cost.
- DeepSeek V4 Flash Latest offers 1.31M context with $0.11 sample workload cost.
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- MiMo-V2.5 · Xiaomi · #2
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Cheaper alternatives
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Open DeepSeek modelsQwen3.8 27B is an open-weight dense vision-language model from Qwen. It is suited for coding, professional workflows, research, multimodal interaction, and long-running agent tasks, with flexible thinking that can be...
DeepSeek V4 Pro 0813 is a large-scale mixture-of-experts model from DeepSeek. This is the GA release of DeepSeek V4 Pro.