Llama 3.1 8B Instruct is $0.12 cheaper per 1M input tokens (85.6% lower; 6.95x difference).
API cost decision in 10 seconds
Llama 3.1 8B Instruct vs Qwen3.5-35B-A3B
Pick Llama 3.1 8B Instruct for lower cost; pick Qwen3.5-35B-A3B 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 Llama 3.1 8B Instruct for lower cost; pick Qwen3.5-35B-A3B only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Llama 3.1 8B Instruct is estimated at $0.04 vs $0.64 for Qwen3.5-35B-A3B, saving $0.59 (93% lower).
Cost-first pickLlama 3.1 8B Instruct
Context-first pickQwen3.5-35B-A3B
Sample savings$0.5993%
10x traffic gap$5.94
Qwen3.5-35B-A3B has more context, but Llama 3.1 8B Instruct saves $0.59 on the standard workload. At 10x that traffic, the same price gap is about $5.94. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Llama 3.1 8B Instruct stays cheaper across input-heavy, balanced, and output-heavy sample workloads.
| Workload shape | Token mix | Better pick | Llama 3.1 8B Instruct | Qwen3.5-35B-A3B |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | Llama 3.1 8B Instruct | $0.12 | $1.2 |
| Balanced workload | 1M input + 1M output | Llama 3.1 8B Instruct | $0.07 | $1.14 |
| Output-heavy chatbot | 1M input + 5M output | Llama 3.1 8B Instruct | $0.27 | $5.14 |
Llama 3.1 8B Instruct is $0.95 cheaper per 1M output tokens (95% lower; 20x difference).
Qwen3.5-35B-A3B has 131.07K more context (2x larger).
Llama 3.1 8B Instruct is $0.59 cheaper on the standard workload (93% 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
Llama 3.1 8B Instruct has the lower input price; Llama 3.1 8B Instruct has the lower output price; Qwen3.5-35B-A3B offers the larger context window. For the 1M input plus 500K output sample, Llama 3.1 8B Instruct is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $0.04 for Llama 3.1 8B Instruct and $0.64 for Qwen3.5-35B-A3B.
Choose Llama 3.1 8B Instruct when you care most about lower input-token price, and lower output-token price.
Choose Qwen3.5-35B-A3B when you care most about larger context window.
- On the standard 1M input plus 500K output workload, Llama 3.1 8B Instruct is estimated at $0.04 vs $0.64 for Qwen3.5-35B-A3B, saving $0.59 (93% lower).
- Llama 3.1 8B Instruct is $0.59 cheaper on the standard workload (93% lower).
- Llama 3.1 8B Instruct is $0.12 cheaper per 1M input tokens (85.6% lower; 6.95x difference).
- Llama 3.1 8B Instruct is $0.95 cheaper per 1M output tokens (95% lower; 20x difference).
- Qwen3.5-35B-A3B has 131.07K more context (2x larger).
| Feature | Llama 3.1 8B Instruct (Meta) | Qwen3.5-35B-A3B (Qwen) |
|---|---|---|
| Input Price prompt tokens per 1M | $0.02 | $0.139 |
| Completion Price per 1M tokens | $0.05 | $1 |
| Sample Workload Cost 1M input + 500K output | $0.04 | $0.64 |
| Context Window | 131.07K | 262.14K |
| Release Date | ||
| Popularity | #40 | #65 |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Llama 3.1 8B Instruct | On the standard 1M input plus 500K output workload, Llama 3.1 8B Instruct is estimated at $0.04 vs $0.64 for Qwen3.5-35B-A3B, saving $0.59 (93% lower). |
| High-volume input processing | Llama 3.1 8B Instruct | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Llama 3.1 8B Instruct | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | Qwen3.5-35B-A3B | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- Llama 3.3 70B Instruct (free) can replace Llama 3.1 8B Instruct when lower sample workload cost matters most: $0.
- Llama 3.2 3B Instruct (free) can replace Llama 3.1 8B Instruct when lower sample workload cost matters most: $0.
- Qwen3 Next 80B A3B Instruct (free) can replace Qwen3.5-35B-A3B when lower sample workload cost matters most: $0.
- Qwen3 Coder 480B A35B (free) can replace Qwen3.5-35B-A3B when lower sample workload cost matters most: $0.
- 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.
- Gemini 2.5 Flash Lite offers 1.05M context with $0.3 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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