Both models report the same input price at $0.3 per 1M tokens.
API cost decision in 10 seconds
Qwen3.5 Plus 2026-04-20 vs KAT-Coder-Pro V2
Pick KAT-Coder-Pro V2 for lower cost; pick Qwen3.5 Plus 2026-04-20 only if the larger context window matters more.
Pricing data updated:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick KAT-Coder-Pro V2 for lower cost; pick Qwen3.5 Plus 2026-04-20 only if the larger context window matters more.
On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $1.2 for Qwen3.5 Plus 2026-04-20, saving $0.3 (25% lower).
Cost-first pickKAT-Coder-Pro V2
Context-first pickQwen3.5 Plus 2026-04-20
Sample savings$0.325%
10x traffic gap$3
Qwen3.5 Plus 2026-04-20 has more context, but KAT-Coder-Pro V2 saves $0.3 on the standard workload. At 10x that traffic, the same price gap is about $3. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
KAT-Coder-Pro V2 stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Qwen3.5 Plus 2026-04-20 | KAT-Coder-Pro V2 |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | KAT-Coder-Pro V2 | $2.4 | $2.1 |
| Balanced workload | 1M input + 1M output | KAT-Coder-Pro V2 | $2.1 | $1.5 |
| Output-heavy chatbot | 1M input + 5M output | KAT-Coder-Pro V2 | $9.3 | $6.3 |
KAT-Coder-Pro V2 is $0.6 cheaper per 1M output tokens (33.3% lower; 1.5x difference).
Qwen3.5 Plus 2026-04-20 has 744K more context (3.91x larger).
KAT-Coder-Pro V2 is $0.3 cheaper on the standard workload (25% 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
both models tie on input price; KAT-Coder-Pro V2 has the lower output price; Qwen3.5 Plus 2026-04-20 offers the larger context window. For the 1M input plus 500K output sample, KAT-Coder-Pro V2 is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.2 for Qwen3.5 Plus 2026-04-20 and $0.9 for KAT-Coder-Pro V2.
Choose Qwen3.5 Plus 2026-04-20 when you care most about larger context window.
Choose KAT-Coder-Pro V2 when you care most about lower output-token price.
- On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $1.2 for Qwen3.5 Plus 2026-04-20, saving $0.3 (25% lower).
- KAT-Coder-Pro V2 is $0.3 cheaper on the standard workload (25% lower).
- Both models report the same input price at $0.3 per 1M tokens.
- KAT-Coder-Pro V2 is $0.6 cheaper per 1M output tokens (33.3% lower; 1.5x difference).
- Qwen3.5 Plus 2026-04-20 has 744K more context (3.91x larger).
| Feature | Qwen3.5 Plus 2026-04-20 (Qwen) | KAT-Coder-Pro V2 (Kwaipilot) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.3 | $0.3 |
| Completion Price per 1M tokens | $1.8 | $1.2 |
| Sample Workload Cost 1M input + 500K output | $1.2 | $0.9 |
| Context Window | 1M | 256K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | KAT-Coder-Pro V2 | On the standard 1M input plus 500K output workload, KAT-Coder-Pro V2 is estimated at $0.9 vs $1.2 for Qwen3.5 Plus 2026-04-20, saving $0.3 (25% lower). |
| High-volume input processing | Tie | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | KAT-Coder-Pro V2 | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Qwen3.5 Plus 2026-04-20 | 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 Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.
- Qwen2.5 7B Instruct can replace Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.09.
- Qwen3.5-9B can replace Qwen3.5 Plus 2026-04-20 when lower sample workload cost matters most: $0.11.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Owl Alpha offers 1.05M context with $0 sample workload cost.
- Gemini 3.1 Flash Lite offers 1.05M context with $1 sample workload cost.
- DeepSeek V4 Pro offers 1.05M context with $0.87 sample workload cost.
- No popular competitor is currently available.
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 modelsKwaipilot catalog
Check other Kwaipilot models with comparable pricing, context, or release timing.
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