Solar Mini 4 is $0.04 cheaper per 1M input tokens (43.6% lower; 1.77x difference).
API cost decision in 10 seconds
🔥DeepSeek V4 Flash 0423 vs NewSolar Mini 4
Pick Solar Mini 4 for lower cost; pick DeepSeek V4 Flash 0423 only if the larger context window matters more.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Solar Mini 4 for lower cost; pick DeepSeek V4 Flash 0423 only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $0.18 for DeepSeek V4 Flash 0423, saving $0.03 (15.3% lower).
Cost-first pickSolar Mini 4
Context-first pickDeepSeek V4 Flash 0423
Sample savings$0.0315.3%
10x traffic gap$0.27
DeepSeek V4 Flash 0423 has more context, but Solar Mini 4 saves $0.03 on the standard workload. At 10x that traffic, the same price gap is about $0.27. 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 Solar Mini 4, balanced workload favors Solar Mini 4, and output-heavy chatbot favors DeepSeek V4 Flash 0423.
| Workload shape | Token mix | Better pick | DeepSeek V4 Flash 0423 | Solar Mini 4 |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Solar Mini 4 | $0.53 | $0.35 |
| Balanced workload | 1M input + 1M output | Solar Mini 4 | $0.27 | $0.25 |
| Output-heavy chatbot | 1M input + 5M output | DeepSeek V4 Flash 0423 | $0.97 | $1.05 |
DeepSeek V4 Flash 0423 is $0.02 cheaper per 1M output tokens (11.4% lower; 1.13x difference).
DeepSeek V4 Flash 0423 has 524.29K more context (2x larger).
Solar Mini 4 is $0.03 cheaper on the standard workload (15.3% 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
Solar Mini 4 has the lower input price; DeepSeek V4 Flash 0423 has the lower output price; DeepSeek V4 Flash 0423 offers the larger context window. For the 1M input plus 500K output sample, Solar Mini 4 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 0423 and $0.15 for Solar Mini 4.
Choose DeepSeek V4 Flash 0423 when you care most about lower output-token price, and larger context window.
Choose Solar Mini 4 when you care most about lower input-token price.
- On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $0.18 for DeepSeek V4 Flash 0423, saving $0.03 (15.3% lower).
- Solar Mini 4 is $0.03 cheaper on the standard workload (15.3% lower).
- Solar Mini 4 is $0.04 cheaper per 1M input tokens (43.6% lower; 1.77x difference).
- DeepSeek V4 Flash 0423 is $0.02 cheaper per 1M output tokens (11.4% lower; 1.13x difference).
- DeepSeek V4 Flash 0423 has 524.29K more context (2x larger).
| Feature | 🔥DeepSeek V4 Flash 0423 (DeepSeek) | NewSolar Mini 4 (Upstage) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.0886 | $0.05 |
| Completion Price per 1M tokens | $0.1772 | $0.2 |
| Sample Workload Cost 1M input + 500K output | $0.18 | $0.15 |
| Context Window | 1.05M | 524.29K |
| Release Date | ||
| Popularity | #10 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Solar Mini 4 | On the standard 1M input plus 500K output workload, Solar Mini 4 is estimated at $0.15 vs $0.18 for DeepSeek V4 Flash 0423, saving $0.03 (15.3% lower). |
| High-volume input processing | Solar Mini 4 | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | DeepSeek V4 Flash 0423 | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | DeepSeek V4 Flash 0423 | 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 Flash 0423 when lower sample workload cost matters most: $0.
- DeepSeek V4 Flash (free) can replace DeepSeek V4 Flash 0423 when lower sample workload cost matters most: $0.
- GLM Flash Latest offers 1.31M context with $0.2 sample workload cost.
- GPT-6 Luna Pro (batch) offers 1.05M context with $0.17 sample workload cost.
- GPT-6 Luna (batch) offers 1.05M context with $0.17 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
- MiMo-V2.6-Pro · Xiaomi · #1
- GLM 5.3 Flash · Z.ai · #2
- DeepSeek V4.1 Flash · DeepSeek · #3
- Hy4 preview · Tencent · #4
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
Open cheapest modelsLarger context alternatives
Find models with larger context windows for RAG, long documents, and codebase review.
Open largest context modelsProvider catalogs
Compare models within provider hubs before choosing a final API vendor.
Open provider hubsDeepSeek catalog
Review all tracked DeepSeek models before deciding whether this matchup is the right shortlist.
Open DeepSeek modelsUpstage catalog
Check other Upstage models with comparable pricing, context, or release timing.
Open Upstage 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...
Solar Mini 4 is Upstage's compact, cost-efficient language model, a 35B-parameter mixture-of-experts with 3B active parameters and a 524K context window. It is built for agentic use cases where response...