Union Alpha is free for input tokens while Qwen3.8 Max (0902) costs $2 per 1M tokens.
API cost decision in 10 seconds
🔥Qwen3.8 Max (0902) vs NewUnion Alpha
Pick Union Alpha for lower cost; pick Qwen3.8 Max (0902) 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 Union Alpha for lower cost; pick Qwen3.8 Max (0902) only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Union Alpha is estimated at $0 vs $5 for Qwen3.8 Max (0902), saving $5 (100% lower).
Cost-first pickUnion Alpha
Context-first pickQwen3.8 Max (0902)
Sample savings$5100%
10x traffic gap$50
Qwen3.8 Max (0902) has more context, but Union Alpha saves $5 on the standard workload. At 10x that traffic, the same price gap is about $50. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Union Alpha stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Qwen3.8 Max (0902) | Union Alpha |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Union Alpha | $13 | $0 |
| Balanced workload | 1M input + 1M output | Union Alpha | $8 | $0 |
| Output-heavy chatbot | 1M input + 5M output | Union Alpha | $32 | $0 |
Union Alpha is free for output tokens while Qwen3.8 Max (0902) costs $6 per 1M tokens.
Qwen3.8 Max (0902) has 737.86K more context (3.81x larger).
Union Alpha is free for the standard workload while the other model is estimated at $5.
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
Union Alpha has the lower input price; Union Alpha has the lower output price; Qwen3.8 Max (0902) offers the larger context window. For the 1M input plus 500K output sample, Union Alpha is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $5 for Qwen3.8 Max (0902) and $0 for Union Alpha.
Choose Qwen3.8 Max (0902) when you care most about larger context window.
Choose Union Alpha when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Union Alpha is estimated at $0 vs $5 for Qwen3.8 Max (0902), saving $5 (100% lower).
- Union Alpha is free for the standard workload while the other model is estimated at $5.
- Union Alpha is free for input tokens while Qwen3.8 Max (0902) costs $2 per 1M tokens.
- Union Alpha is free for output tokens while Qwen3.8 Max (0902) costs $6 per 1M tokens.
- Qwen3.8 Max (0902) has 737.86K more context (3.81x larger).
| Feature | 🔥Qwen3.8 Max (0902) (Qwen) | NewUnion Alpha (stealth) |
|---|---|---|
| Input Price prompt tokens per 1M | $2 | $0 |
| Completion Price per 1M tokens | $6 | $0 |
| Sample Workload Cost 1M input + 500K output | $5 | $0 |
| Context Window | 1M | 262.14K |
| Release Date | ||
| Popularity | #1 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Union Alpha | On the standard 1M input plus 500K output workload, Union Alpha is estimated at $0 vs $5 for Qwen3.8 Max (0902), saving $5 (100% lower). |
| High-volume input processing | Union Alpha | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Union Alpha | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Qwen3.8 Max (0902) | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Qwen3 Next 80B A3B Instruct (free) can replace Qwen3.8 Max (0902) when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.8 Max (0902) when lower sample workload cost matters most: $0.
- Qwen3.7 Flash can replace Qwen3.8 Max (0902) when lower sample workload cost matters most: $0.1.
- Qwen3 30B A3B Instruct 2507 can replace Qwen3.8 Max (0902) when lower sample workload cost matters most: $0.14.
- Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- DeepSeek V4 Flash 0731 offers 1.31M context with $0.12 sample workload cost.
- GLM 5.3 Flash offers 1.31M context with $0.24 sample workload cost.
- GPT-5.6 Luna · OpenAI · #2
- Hy4 preview · Tencent · #3
- DeepSeek V4 Flash 0731 · DeepSeek · #4
- GLM 5.3 Flash · Z.ai · #5
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 hubsQwen catalog
Review all tracked Qwen models before deciding whether this matchup is the right shortlist.
Open Qwen modelsstealth catalog
Check other stealth models with comparable pricing, context, or release timing.
Open stealth modelsQwen3.8 Max 0902 is an updated snapshot of Qwen3.8 Max from Alibaba's Qwen team. It is a 2.4-trillion-parameter mixture-of-experts model that accepts text, image, and video input and returns text,...
Union Alpha is a multimodal model built for research, coding, and agentic workflows, while delivering frontier-level performance across a broad range of general-purpose tasks. Union Alpha is a stealth model....