Gemini 3.1 Pro Preview Custom Tools vs Qwen3.5 Plus 2026-02-15
How do these models stack up? Below is an expert side-by-side comparison of specifications, context window capacity, live pricing per million tokens, and standardized benchmark scores for Gemini 3.1 Pro Preview Custom Tools and Qwen3.5 Plus 2026-02-15.
Gemini 3.1 Pro Preview Custom Tools
Gemini 3.1 Pro Preview Custom Tools is a variant of Gemini 3.1 Pro that improves tool selection behavior by preventing overuse of a general bash tool when more efficient third-party...
Qwen3.5 Plus 2026-02-15
The Qwen3.5 native vision-language series Plus models are built on a hybrid architecture that integrates linear attention mechanisms with sparse mixture-of-experts models, achieving higher inference efficiency. In a variety of...
Technical Specifications
| Specification | Gemini 3.1 Pro Preview Custom Tools | Qwen3.5 Plus 2026-02-15 |
|---|---|---|
| Provider | Alibaba | |
| Context Window | 1,048,756 tokens | 1,000,000 tokens |
| Agent Suitability | N/A | N/A |
| Time to First Token (TTFT) | N/A | N/A |
| Deployment Model | managed api | self hostable |
| Production Stability | beta | beta |
| API Available | Yes | Yes |
| Released Date | 2026-02-25 | 2026-02-16 |
API Pricing Comparison
Input Price per Million Tokens
Gemini 3.1 Pro Preview Custom Tools
$2.00
Qwen3.5 Plus 2026-02-15
$0.26
Output Price per Million Tokens
Gemini 3.1 Pro Preview Custom Tools
$12.00
Qwen3.5 Plus 2026-02-15
$1.56
Want to test both models live?
Run side-by-side prompt prompts in our dynamic Sandbox. Check execution speeds, latency metrics, and compute actual costs in real-time.
Benchmark Performance Metrics
Scores show the raw performance percentages verified across key evaluation suites. Higher bars indicate superior accuracy and capability in that domain.
Gemini 3.1 Pro Preview Custom Tools Quirks & Gotchas
No developer gotchas reported.
Qwen3.5 Plus 2026-02-15 Quirks & Gotchas
No developer gotchas reported.