CoBuddy (free) is free for input tokens while Qwen3.5 Plus 2026-02-15 costs $0.26 per 1M tokens.
API cost decision in 10 seconds
NewCoBuddy (free) vs Qwen3.5 Plus 2026-02-15
Pick CoBuddy (free) for lower cost; pick Qwen3.5 Plus 2026-02-15 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 CoBuddy (free) for lower cost; pick Qwen3.5 Plus 2026-02-15 only if the larger context window matters more.
On the standard 1M input plus 500K output workload, CoBuddy (free) is estimated at $0 vs $1.04 for Qwen3.5 Plus 2026-02-15, saving $1.04 (100% lower).
Cost-first pickCoBuddy (free)
Context-first pickQwen3.5 Plus 2026-02-15
Sample savings$1.04100%
10x traffic gap$10.4
Qwen3.5 Plus 2026-02-15 has more context, but CoBuddy (free) saves $1.04 on the standard workload. At 10x that traffic, the same price gap is about $10.4. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
CoBuddy (free) stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | CoBuddy (free) | Qwen3.5 Plus 2026-02-15 |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | CoBuddy (free) | $0 | $2.08 |
| Balanced workload | 1M input + 1M output | CoBuddy (free) | $0 | $1.82 |
| Output-heavy chatbot | 1M input + 5M output | CoBuddy (free) | $0 | $8.06 |
CoBuddy (free) is free for output tokens while Qwen3.5 Plus 2026-02-15 costs $1.56 per 1M tokens.
Qwen3.5 Plus 2026-02-15 has 868.93K more context (7.63x larger).
CoBuddy (free) is free for the standard workload while the other model is estimated at $1.04.
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
CoBuddy (free) has the lower input price; CoBuddy (free) has the lower output price; Qwen3.5 Plus 2026-02-15 offers the larger context window. For the 1M input plus 500K output sample, CoBuddy (free) is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0 for CoBuddy (free) and $1.04 for Qwen3.5 Plus 2026-02-15.
Choose CoBuddy (free) when you care most about lower input-token price, and lower output-token price.
Choose Qwen3.5 Plus 2026-02-15 when you care most about larger context window.
- On the standard 1M input plus 500K output workload, CoBuddy (free) is estimated at $0 vs $1.04 for Qwen3.5 Plus 2026-02-15, saving $1.04 (100% lower).
- CoBuddy (free) is free for the standard workload while the other model is estimated at $1.04.
- CoBuddy (free) is free for input tokens while Qwen3.5 Plus 2026-02-15 costs $0.26 per 1M tokens.
- CoBuddy (free) is free for output tokens while Qwen3.5 Plus 2026-02-15 costs $1.56 per 1M tokens.
- Qwen3.5 Plus 2026-02-15 has 868.93K more context (7.63x larger).
| Feature | NewCoBuddy (free) (Baidu Qianfan) | Qwen3.5 Plus 2026-02-15 (Qwen) |
|---|---|---|
| Input Price prompt tokens per 1M | $0 | $0.26 |
| Completion Price per 1M tokens | $0 | $1.56 |
| Sample Workload Cost 1M input + 500K output | $0 | $1.04 |
| Context Window | 131.07K | 1M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | CoBuddy (free) | On the standard 1M input plus 500K output workload, CoBuddy (free) is estimated at $0 vs $1.04 for Qwen3.5 Plus 2026-02-15, saving $1.04 (100% lower). |
| High-volume input processing | CoBuddy (free) | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | CoBuddy (free) | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Qwen3.5 Plus 2026-02-15 | 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 2026-02-15 when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.5 Plus 2026-02-15 when lower sample workload cost matters most: $0.
- Qwen2.5 7B Instruct can replace Qwen3.5 Plus 2026-02-15 when lower sample workload cost matters most: $0.09.
- Qwen3.5-9B can replace Qwen3.5 Plus 2026-02-15 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.
- DeepSeek V4 Flash offers 1.05M context with $0.2 sample workload cost.
- DeepSeek V4 Pro offers 1.05M context with $0.87 sample workload cost.
- DeepSeek V4 Flash · DeepSeek · #1
- Hy3 preview · Tencent · #2
- Claude Opus 4.7 · Anthropic · #3
- Claude Sonnet 4.6 · Anthropic · #4
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