Qwen3 8B is $0.05 cheaper per 1M input tokens (50% lower; 2x difference).
API cost decision in 10 seconds
🔥DeepSeek V4 Flash vs Qwen3 8B
Pick DeepSeek V4 Flash when budget and context both matter.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick DeepSeek V4 Flash when budget and context both matter.
On the standard 1M input plus 500K output workload, DeepSeek V4 Flash is estimated at $0.2 vs $0.25 for Qwen3 8B, saving $0.05 (20% lower).
Cost-first pickDeepSeek V4 Flash
Context-first pickDeepSeek V4 Flash
Sample savings$0.0520%
10x traffic gap$0.5
DeepSeek V4 Flash is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $0.5. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Cost winner changes by workload shape: input-heavy / RAG favors Qwen3 8B, balanced workload favors DeepSeek V4 Flash, and output-heavy chatbot favors DeepSeek V4 Flash.
| Workload shape | Token mix | Better pick | DeepSeek V4 Flash | Qwen3 8B |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Qwen3 8B | $0.6 | $0.45 |
| Balanced workload | 1M input + 1M output | DeepSeek V4 Flash | $0.3 | $0.45 |
| Output-heavy chatbot | 1M input + 5M output | DeepSeek V4 Flash | $1.1 | $2.05 |
DeepSeek V4 Flash is $0.2 cheaper per 1M output tokens (50% lower; 2x difference).
DeepSeek V4 Flash has 917.5K more context (8x larger).
DeepSeek V4 Flash is $0.05 cheaper on the standard workload (20% 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 8B has the lower input price; DeepSeek V4 Flash has the lower output price; DeepSeek V4 Flash offers the larger context window. For the 1M input plus 500K output sample, DeepSeek V4 Flash is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.2 for DeepSeek V4 Flash and $0.25 for Qwen3 8B.
Choose DeepSeek V4 Flash when you care most about lower output-token price, and larger context window.
Choose Qwen3 8B when you care most about lower input-token price.
- On the standard 1M input plus 500K output workload, DeepSeek V4 Flash is estimated at $0.2 vs $0.25 for Qwen3 8B, saving $0.05 (20% lower).
- DeepSeek V4 Flash is $0.05 cheaper on the standard workload (20% lower).
- Qwen3 8B is $0.05 cheaper per 1M input tokens (50% lower; 2x difference).
- DeepSeek V4 Flash is $0.2 cheaper per 1M output tokens (50% lower; 2x difference).
- DeepSeek V4 Flash has 917.5K more context (8x larger).
| Feature | 🔥DeepSeek V4 Flash (DeepSeek) | Qwen3 8B (Qwen) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.1 | $0.05 |
| Completion Price per 1M tokens | $0.2 | $0.4 |
| Sample Workload Cost 1M input + 500K output | $0.2 | $0.25 |
| Context Window | 1.05M | 131.07K |
| Release Date | ||
| Popularity | #1 | #102 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | DeepSeek V4 Flash | On the standard 1M input plus 500K output workload, DeepSeek V4 Flash is estimated at $0.2 vs $0.25 for Qwen3 8B, saving $0.05 (20% lower). |
| High-volume input processing | Qwen3 8B | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | DeepSeek V4 Flash | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | DeepSeek V4 Flash | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- DeepSeek V4 Flash (free) can replace DeepSeek V4 Flash when lower sample workload cost matters most: $0.
- Qwen3 Next 80B A3B Instruct (free) can replace Qwen3 8B when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3 8B when lower sample workload cost matters most: $0.
- Qwen2.5 7B Instruct can replace Qwen3 8B when lower sample workload cost matters most: $0.09.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
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Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
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Open Qwen modelsDeepSeek V4 Flash is an efficiency-optimized Mixture-of-Experts model from DeepSeek with 284B total parameters and 13B activated parameters, supporting a 1M-token context window. It is designed for fast inference and...
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