Both models report the same input price at $0.15 per 1M tokens.
API cost decision in 10 seconds
🔥DeepSeek V4.1 Flash vs NewQwen3.8 Omni Flash
Pick Qwen3.8 Omni Flash for lower cost; pick DeepSeek V4.1 Flash 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 Omni Flash for lower cost; pick DeepSeek V4.1 Flash only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Qwen3.8 Omni Flash is estimated at $0.39 vs $0.45 for DeepSeek V4.1 Flash, saving $0.06 (14.4% lower).
Cost-first pickQwen3.8 Omni Flash
Context-first pickDeepSeek V4.1 Flash
Sample savings$0.0614.4%
10x traffic gap$0.65
DeepSeek V4.1 Flash has more context, but Qwen3.8 Omni Flash saves $0.06 on the standard workload. At 10x that traffic, the same price gap is about $0.65. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Qwen3.8 Omni Flash stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | DeepSeek V4.1 Flash | Qwen3.8 Omni Flash |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Qwen3.8 Omni Flash | $1.05 | $0.98 |
| Balanced workload | 1M input + 1M output | Qwen3.8 Omni Flash | $0.75 | $0.62 |
| Output-heavy chatbot | 1M input + 5M output | Qwen3.8 Omni Flash | $3.15 | $2.5 |
Qwen3.8 Omni Flash is $0.13 cheaper per 1M output tokens (21.7% lower; 1.28x difference).
DeepSeek V4.1 Flash has 48.58K more context (1.05x larger).
Qwen3.8 Omni Flash is $0.06 cheaper on the standard workload (14.4% 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
both models tie on input price; Qwen3.8 Omni Flash has the lower output price; DeepSeek V4.1 Flash offers the larger context window. For the 1M input plus 500K output sample, Qwen3.8 Omni Flash is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.45 for DeepSeek V4.1 Flash and $0.39 for Qwen3.8 Omni Flash.
Choose DeepSeek V4.1 Flash when you care most about larger context window.
Choose Qwen3.8 Omni Flash when you care most about lower output-token price.
- On the standard 1M input plus 500K output workload, Qwen3.8 Omni Flash is estimated at $0.39 vs $0.45 for DeepSeek V4.1 Flash, saving $0.06 (14.4% lower).
- Qwen3.8 Omni Flash is $0.06 cheaper on the standard workload (14.4% lower).
- Both models report the same input price at $0.15 per 1M tokens.
- Qwen3.8 Omni Flash is $0.13 cheaper per 1M output tokens (21.7% lower; 1.28x difference).
- DeepSeek V4.1 Flash has 48.58K more context (1.05x larger).
| Feature | 🔥DeepSeek V4.1 Flash (DeepSeek) | NewQwen3.8 Omni Flash (Qwen) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.15 | $0.15 |
| Completion Price per 1M tokens | $0.6 | $0.47 |
| Sample Workload Cost 1M input + 500K output | $0.45 | $0.39 |
| Context Window | 1.05M | 1M |
| Release Date | ||
| Popularity | #3 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Qwen3.8 Omni Flash | On the standard 1M input plus 500K output workload, Qwen3.8 Omni Flash is estimated at $0.39 vs $0.45 for DeepSeek V4.1 Flash, saving $0.06 (14.4% lower). |
| High-volume input processing | Tie | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Qwen3.8 Omni Flash | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | DeepSeek V4.1 Flash | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- DeepSeek V4 Flash 0731 (free) can replace DeepSeek V4.1 Flash when lower sample workload cost matters most: $0.
- DeepSeek V4 Flash (free) can replace DeepSeek V4.1 Flash when lower sample workload cost matters most: $0.
- DeepSeek V4 Flash 0423 can replace DeepSeek V4.1 Flash when lower sample workload cost matters most: $0.1.
- DeepSeek V4 Flash Vision Exp (batch) can replace DeepSeek V4.1 Flash when lower sample workload cost matters most: $0.28.
- GLM 5.3 Flash offers 1.31M context with $0.4 sample workload cost.
- DeepSeek V4 Flash 0731 offers 1.31M context with $0.36 sample workload cost.
- GLM Flash Latest offers 1.31M context with $0.2 sample workload cost.
- DeepSeek V4 Flash Latest offers 1.31M context with $0.43 sample workload cost.
- MiMo-V2.6-Pro · Xiaomi · #1
- Qwen3.8 Max (0902) · Qwen · #2
- GLM 5.3 Flash · Z.ai · #4
- Hy4 preview · Tencent · #5
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
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Open Qwen modelsDeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. It activates 8B parameters on input and 16B on...
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