Hy3 preview is $0.03 cheaper per 1M input tokens (30% lower; 1.43x difference).
API cost decision in 10 seconds
🔥DeepSeek V4 Flash vs 🔥Hy3 preview
Pick Hy3 preview for lower cost; pick DeepSeek V4 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 Hy3 preview for lower cost; pick DeepSeek V4 Flash only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Hy3 preview is estimated at $0.17 vs $0.18 for DeepSeek V4 Flash, saving $0.01 (6.7% lower).
Cost-first pickHy3 preview
Context-first pickDeepSeek V4 Flash
Sample savings$0.016.7%
10x traffic gap$0.12
DeepSeek V4 Flash has more context, but Hy3 preview saves $0.01 on the standard workload. At 10x that traffic, the same price gap is about $0.12. 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 Hy3 preview, balanced workload favors DeepSeek V4 Flash, and output-heavy chatbot favors DeepSeek V4 Flash.
| Workload shape | Token mix | Better pick | DeepSeek V4 Flash | Hy3 preview |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Hy3 preview | $0.54 | $0.42 |
| Balanced workload | 1M input + 1M output | DeepSeek V4 Flash | $0.27 | $0.27 |
| Output-heavy chatbot | 1M input + 5M output | DeepSeek V4 Flash | $0.99 | $1.11 |
DeepSeek V4 Flash is $0.03 cheaper per 1M output tokens (14.3% lower; 1.17x difference).
DeepSeek V4 Flash has 786.43K more context (4x larger).
Hy3 preview is $0.01 cheaper on the standard workload (6.7% 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
Hy3 preview 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, Hy3 preview is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.18 for DeepSeek V4 Flash and $0.17 for Hy3 preview.
Choose DeepSeek V4 Flash when you care most about lower output-token price, and larger context window.
Choose Hy3 preview when you care most about lower input-token price.
- On the standard 1M input plus 500K output workload, Hy3 preview is estimated at $0.17 vs $0.18 for DeepSeek V4 Flash, saving $0.01 (6.7% lower).
- Hy3 preview is $0.01 cheaper on the standard workload (6.7% lower).
- Hy3 preview is $0.03 cheaper per 1M input tokens (30% lower; 1.43x difference).
- DeepSeek V4 Flash is $0.03 cheaper per 1M output tokens (14.3% lower; 1.17x difference).
- DeepSeek V4 Flash has 786.43K more context (4x larger).
| Feature | 🔥DeepSeek V4 Flash (DeepSeek) | 🔥Hy3 preview (Tencent) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.09 | $0.063 |
| Completion Price per 1M tokens | $0.18 | $0.21 |
| Sample Workload Cost 1M input + 500K output | $0.18 | $0.17 |
| Context Window | 1.05M | 262.14K |
| Release Date | ||
| Popularity | #1 | #2 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Hy3 preview | On the standard 1M input plus 500K output workload, Hy3 preview is estimated at $0.17 vs $0.18 for DeepSeek V4 Flash, saving $0.01 (6.7% lower). |
| High-volume input processing | Hy3 preview | 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.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
- MiMo-V2.5 · Xiaomi · #3
- MiniMax M3 · MiniMax · #4
- DeepSeek V4 Pro · DeepSeek · #5
- Claude Sonnet 4.6 · Anthropic · #6
Cheaper alternatives
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Open Tencent 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...
Hy3 preview is a high-efficiency Mixture-of-Experts model from Tencent designed for agentic workflows and production use. It supports configurable reasoning levels across disabled, low, and high modes, allowing it to...