Qwen3.5 397B A17B is $2.61 cheaper per 1M input tokens (87% lower; 7.69x difference).
API cost decision in 10 seconds
Qwen3.5 397B A17B vs Sonar Pro Search
Pick Qwen3.5 397B A17B when budget and context both matter.
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Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Qwen3.5 397B A17B when budget and context both matter.
On the standard 1M input plus 500K output workload, Qwen3.5 397B A17B is estimated at $1.56 vs $10.5 for Sonar Pro Search, saving $8.94 (85.1% lower).
Cost-first pickQwen3.5 397B A17B
Context-first pickQwen3.5 397B A17B
Sample savings$8.9485.1%
10x traffic gap$89.4
Qwen3.5 397B A17B is cheaper on the standard workload and also has the larger context window. At 10x that traffic, the same price gap is about $89.4. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Qwen3.5 397B A17B stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Qwen3.5 397B A17B | Sonar Pro Search |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Qwen3.5 397B A17B | $3.12 | $22.5 |
| Balanced workload | 1M input + 1M output | Qwen3.5 397B A17B | $2.73 | $18 |
| Output-heavy chatbot | 1M input + 5M output | Qwen3.5 397B A17B | $12.09 | $78 |
Qwen3.5 397B A17B is $12.66 cheaper per 1M output tokens (84.4% lower; 6.41x difference).
Qwen3.5 397B A17B has 62.14K more context (1.31x larger).
Qwen3.5 397B A17B is $8.94 cheaper on the standard workload (85.1% 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
Qwen3.5 397B A17B has the lower input price; Qwen3.5 397B A17B has the lower output price; Qwen3.5 397B A17B offers the larger context window. For the 1M input plus 500K output sample, Qwen3.5 397B A17B is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $1.56 for Qwen3.5 397B A17B and $10.5 for Sonar Pro Search.
Choose Qwen3.5 397B A17B when you care most about lower input-token price, lower output-token price, and larger context window.
Choose Sonar Pro Search when its provider, model quality, latency, or availability is more important than the numeric price/context winner.
- On the standard 1M input plus 500K output workload, Qwen3.5 397B A17B is estimated at $1.56 vs $10.5 for Sonar Pro Search, saving $8.94 (85.1% lower).
- Qwen3.5 397B A17B is $8.94 cheaper on the standard workload (85.1% lower).
- Qwen3.5 397B A17B is $2.61 cheaper per 1M input tokens (87% lower; 7.69x difference).
- Qwen3.5 397B A17B is $12.66 cheaper per 1M output tokens (84.4% lower; 6.41x difference).
- Qwen3.5 397B A17B has 62.14K more context (1.31x larger).
| Feature | Qwen3.5 397B A17B (Qwen) | Sonar Pro Search (Perplexity) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.39 | $3 |
| Completion Price per 1M tokens | $2.34 | $15 |
| Sample Workload Cost 1M input + 500K output | $1.56 | $10.5 |
| Context Window | 262.14K | 200K |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Qwen3.5 397B A17B | On the standard 1M input plus 500K output workload, Qwen3.5 397B A17B is estimated at $1.56 vs $10.5 for Sonar Pro Search, saving $8.94 (85.1% lower). |
| High-volume input processing | Qwen3.5 397B A17B | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Qwen3.5 397B A17B | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Qwen3.5 397B A17B | 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 397B A17B when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.5 397B A17B when lower sample workload cost matters most: $0.
- Qwen2.5 7B Instruct can replace Qwen3.5 397B A17B when lower sample workload cost matters most: $0.09.
- Qwen3.5-9B can replace Qwen3.5 397B A17B when lower sample workload cost matters most: $0.11.
- Llama 4 Scout offers 10M context with $0.23 sample workload cost.
- Grok 4.20 Multi-Agent offers 2M context with $5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- GPT-5.4 offers 1.05M context with $10 sample workload cost.
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