DeepSeek V4 Flash Latest is $0.04 cheaper per 1M input tokens (60% lower; 2.5x difference).
API cost decision in 10 seconds
Nex-N2.5-Pro vs DeepSeek V4 Flash Latest
Pick Nex-N2.5-Pro for lower cost; pick DeepSeek V4 Flash Latest 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 Nex-N2.5-Pro for lower cost; pick DeepSeek V4 Flash Latest only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Nex-N2.5-Pro is estimated at $0.2 vs $0.43 for DeepSeek V4 Flash Latest, saving $0.23 (53.5% lower).
Cost-first pickNex-N2.5-Pro
Context-first pickDeepSeek V4 Flash Latest
Sample savings$0.2353.5%
10x traffic gap$2.3
DeepSeek V4 Flash Latest has more context, but Nex-N2.5-Pro saves $0.23 on the standard workload. At 10x that traffic, the same price gap is about $2.3. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Nex-N2.5-Pro stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Nex-N2.5-Pro | DeepSeek V4 Flash Latest |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Nex-N2.5-Pro | $0.5 | $0.55 |
| Balanced workload | 1M input + 1M output | Nex-N2.5-Pro | $0.33 | $0.83 |
| Output-heavy chatbot | 1M input + 5M output | Nex-N2.5-Pro | $1.32 | $4.03 |
Nex-N2.5-Pro is $0.55 cheaper per 1M output tokens (68.8% lower; 3.2x difference).
DeepSeek V4 Flash Latest has 1.05M more context (5x larger).
Nex-N2.5-Pro is $0.23 cheaper on the standard workload (53.5% 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
DeepSeek V4 Flash Latest has the lower input price; Nex-N2.5-Pro has the lower output price; DeepSeek V4 Flash Latest offers the larger context window. For the 1M input plus 500K output sample, Nex-N2.5-Pro is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.2 for Nex-N2.5-Pro and $0.43 for DeepSeek V4 Flash Latest.
Choose Nex-N2.5-Pro when you care most about lower output-token price.
Choose DeepSeek V4 Flash Latest when you care most about lower input-token price, and larger context window.
- On the standard 1M input plus 500K output workload, Nex-N2.5-Pro is estimated at $0.2 vs $0.43 for DeepSeek V4 Flash Latest, saving $0.23 (53.5% lower).
- Nex-N2.5-Pro is $0.23 cheaper on the standard workload (53.5% lower).
- DeepSeek V4 Flash Latest is $0.04 cheaper per 1M input tokens (60% lower; 2.5x difference).
- Nex-N2.5-Pro is $0.55 cheaper per 1M output tokens (68.8% lower; 3.2x difference).
- DeepSeek V4 Flash Latest has 1.05M more context (5x larger).
| Feature | Nex-N2.5-Pro (Nex AGI) | DeepSeek V4 Flash Latest (DeepSeek) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.075 | $0.03 |
| Completion Price per 1M tokens | $0.25 | $0.8 |
| Sample Workload Cost 1M input + 500K output | $0.2 | $0.43 |
| Context Window | 262.14K | 1.31M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Nex-N2.5-Pro | On the standard 1M input plus 500K output workload, Nex-N2.5-Pro is estimated at $0.2 vs $0.43 for DeepSeek V4 Flash Latest, saving $0.23 (53.5% lower). |
| High-volume input processing | DeepSeek V4 Flash Latest | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Nex-N2.5-Pro | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | DeepSeek V4 Flash Latest | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Nex-N2.5-Mini (free) can replace Nex-N2.5-Pro when lower sample workload cost matters most: $0.
- Nex-N2.5-Pro (free) can replace Nex-N2.5-Pro when lower sample workload cost matters most: $0.
- Nex-N2-Pro (free) can replace Nex-N2.5-Pro when lower sample workload cost matters most: $0.
- Nex-N2.5-Mini can replace Nex-N2.5-Pro when lower sample workload cost matters most: $0.08.
- No larger-context model is currently tracked within a close sample-cost band.
- MiMo-V2.6-Pro · Xiaomi · #1
- Qwen3.8 Max (0902) · Qwen · #2
- DeepSeek V4.1 Flash · DeepSeek · #3
- GLM 5.3 Flash · Z.ai · #4
Cheaper alternatives
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Open DeepSeek modelsNex-N2.5 is an agentic model built to turn goals into working, verified outcomes. Its core strength is agentic coding within a visual feedback loop: it can explore codebases, implement multi-file...
This model always redirects to the latest model in the DeepSeek V4 Flash family.