Space Bunny Alpha is free for input tokens while Qwen3.8 Max Prime costs $4 per 1M tokens.
API cost decision in 10 seconds
NewQwen3.8 Max Prime vs NewSpace Bunny Alpha
Pick Space Bunny Alpha when budget is the priority.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Space Bunny Alpha when budget is the priority.
On the standard 1M input plus 500K output workload, Space Bunny Alpha is estimated at $0 vs $10 for Qwen3.8 Max Prime, saving $10 (100% lower).
Cost-first pickSpace Bunny Alpha
Context-first pickBoth models
Sample savings$10100%
10x traffic gap$100
The reported context window is tied, so cost and provider fit carry more weight. At 10x that traffic, the same price gap is about $100. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Space Bunny Alpha stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Qwen3.8 Max Prime | Space Bunny Alpha |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Space Bunny Alpha | $26 | $0 |
| Balanced workload | 1M input + 1M output | Space Bunny Alpha | $16 | $0 |
| Output-heavy chatbot | 1M input + 5M output | Space Bunny Alpha | $64 | $0 |
Space Bunny Alpha is free for output tokens while Qwen3.8 Max Prime costs $12 per 1M tokens.
Both models report the same context window at 1M tokens.
Space Bunny Alpha is free for the standard workload while the other model is estimated at $10.
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
Space Bunny Alpha has the lower input price; Space Bunny Alpha has the lower output price; both models report the same context window. For the 1M input plus 500K output sample, Space Bunny Alpha is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $10 for Qwen3.8 Max Prime and $0 for Space Bunny Alpha.
Choose Qwen3.8 Max Prime when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
Choose Space Bunny Alpha when you care most about lower input-token price, and lower output-token price.
- On the standard 1M input plus 500K output workload, Space Bunny Alpha is estimated at $0 vs $10 for Qwen3.8 Max Prime, saving $10 (100% lower).
- Space Bunny Alpha is free for the standard workload while the other model is estimated at $10.
- Space Bunny Alpha is free for input tokens while Qwen3.8 Max Prime costs $4 per 1M tokens.
- Space Bunny Alpha is free for output tokens while Qwen3.8 Max Prime costs $12 per 1M tokens.
- Both models report the same context window at 1M tokens.
| Feature | NewQwen3.8 Max Prime (Qwen) | NewSpace Bunny Alpha (stealth) |
|---|---|---|
| Input Price prompt tokens per 1M | $4 | $0 |
| Completion Price per 1M tokens | $12 | $0 |
| Sample Workload Cost 1M input + 500K output | $10 | $0 |
| Context Window | 1M | 1M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Space Bunny Alpha | On the standard 1M input plus 500K output workload, Space Bunny Alpha is estimated at $0 vs $10 for Qwen3.8 Max Prime, saving $10 (100% lower). |
| High-volume input processing | Space Bunny Alpha | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Space Bunny Alpha | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Tie | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Qwen3.8 27B (free) can replace Qwen3.8 Max Prime when lower sample workload cost matters most: $0.
- Qwen3 Next 80B A3B Instruct (free) can replace Qwen3.8 Max Prime when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.8 Max Prime when lower sample workload cost matters most: $0.
- Qwen3.7 Flash can replace Qwen3.8 Max Prime when lower sample workload cost matters most: $0.1.
- 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.
- GLM 5.3 Flash offers 1.31M context with $0.4 sample workload cost.
- DeepSeek V4 Flash 0731 offers 1.31M context with $0.36 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.
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Open provider hubsQwen catalog
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Open Qwen modelsstealth catalog
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