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Gemini 3.1 Pro Preview Custom Tools vs Qwen3.5 397B A17B

Signal-by-Signal Comparison
SignalGemini 3.1 Pro Preview Custom ToolsDeltaQwen3.5 397B A17B
Capabilities
100
+17
83
Benchmarks
92
+11
80
Pricing
88
-10
98
Context window size
86
+9
77
Recency
100
--
100
Output Capacity
80
+60
20
Overall Result
4 wins
of 6
1 wins
Gemini 3.1 Pro Preview Custom Tools wins 4 of 6 signals

Score History

Score History (21 data points)
Gemini 3.1 Pro Preview Custom ToolsQwen3.5 397B A17B
Gemini 3.1 Pro Preview Custom Tools

91.7

current score

Leader

Gemini 3.1 Pro Preview Custom Tools

right now

Qwen3.5 397B A17B

79

current score

LMMarketCap.com
Interactive Price Comparison
100Kcalls/month
1,000tokens (~1,333 chars)
500tokens (~667 chars)

Gemini 3.1 Pro Preview Custom Tools

Google

Per request$0.008000
Daily$26.67
Monthly$800.00
Annual$9600.00

Qwen3.5 397B A17B

Alibaba

Best Value
Per request$0.001610
Daily$5.37
Monthly$161.00
Annual$1932.00

Qwen3.5 397B A17B saves you $639.00/month

That's $7668.00/year compared to Gemini 3.1 Pro Preview Custom Tools at your current usage level of 100K calls/month.

80% cheaper
Choose Qwen3.5 397B A17B for cost optimization

Gemini 3.1 Pro Preview Custom Tools pricing:
Input:$2.00/M tokens
Output:$12.00/M tokens
Qwen3.5 397B A17B pricing:
Input:$0.39/M tokens
Output:$2.45/M tokens
Winner
Gemini 3.1 Pro Preview Custom Tools

Google

92

Composite Score

Qwen3.5 397B A17B

Alibaba

79

Composite Score

Signal-by-Signal Comparison
MetricGemini 3.1 Pro Preview Custom ToolsQwen3.5 397B A17BWinner
Overall Score
92
79
Gemini 3.1 Pro Preview Custom Tools
Rank#7#53
Gemini 3.1 Pro Preview Custom Tools
Quality Rank#7#53
Gemini 3.1 Pro Preview Custom Tools
Adoption Rank#7#53
Gemini 3.1 Pro Preview Custom Tools
Parameters--397B--
Context Window1049K256K
Gemini 3.1 Pro Preview Custom Tools
Pricing$2.00/$12.00/M$0.39/$2.45/M--
Signal Scores
Capabilities
100
83
Gemini 3.1 Pro Preview Custom Tools
Benchmarks
92
80
Gemini 3.1 Pro Preview Custom Tools
Pricing
88
98
Qwen3.5 397B A17B
Context window size
86
77
Gemini 3.1 Pro Preview Custom Tools
Recency
100
100
Gemini 3.1 Pro Preview Custom Tools
Output Capacity
80
20
Gemini 3.1 Pro Preview Custom Tools
Benchmark Head-to-Head(5 benchmarks)
Gemini 3.1: 2Qwen3.5 397B: 0
Gemini 3.1
Qwen3.5 397B
Normalized 0-100%
MMLU
92.6%-
MMLU-Pro
91.2%87.8%
GPQA Diamond
94.3%-
SWE-bench Verified
80.6%-
Arena Elo
14941443
Benchmark Interpretation

Our score (0-100) is driven by benchmark performance (90%) from Arena Elo ratings, MMLU, GPQA, HumanEval, SWE-bench, and 15+ standardized evaluations. Capabilities and context window serve as tiebreakers (10%). Learn more about our methodology.

Gemini 3.1 Pro Preview Custom ToolsElite Tier

Scores 92/100 (rank #7), placing it in the top 98% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100
Qwen3.5 397B A17BStrong Performer

Scores 79/100 (rank #53), placing it in the top 82% of all 290 models tracked.

Raw Quality0/100
Cost Efficiency0/100
Speed0/100

Gemini 3.1 Pro Preview Custom Tools has a 13-point advantage, which typically translates to noticeably better performance on complex reasoning, code generation, and multi-step tasks.

When to Use Each Model

Choose Gemini 3.1 Pro Preview Custom Tools when you need:

  • Processing long documents or large codebases (1049K token context)
  • Step-by-step reasoning and chain-of-thought problem solving

Choose Qwen3.5 397B A17B when you need:

  • High-volume production workloads where API costs must be minimized
  • Step-by-step reasoning and chain-of-thought problem solving
  • Self-hosted deployments where you need full control over the model
Cost-Performance Analysis
Gemini 3.1 Pro Preview Custom Tools
Input cost$2.00/M tokens
Output cost$12.00/M tokens
Cost per quality point$0.153
Est. monthly (1M tokens/day)$210.00
Qwen3.5 397B A17BBest Value
Input cost$0.39/M tokens
Output cost$2.45/M tokens
Cost per quality point$0.036
Est. monthly (1M tokens/day)$42.52

Qwen3.5 397B A17B offers 80% better value per quality point. At 1M tokens/day, you'd spend $42.52/month with Qwen3.5 397B A17B vs $210.00/month with Gemini 3.1 Pro Preview Custom Tools - a $167.48 monthly difference.

Latency & Speed
Gemini 3.1 Pro Preview Custom ToolsFaster
Speed score0/100
Qwen3.5 397B A17B
Speed score0/100

Both models have comparable response speeds. For most applications, the latency difference is negligible.

When latency matters most: Interactive chatbots, IDE code completion, real-time translation, and user-facing applications where response time directly impacts experience. For batch processing, background summarization, or offline analysis, latency is less critical.

Example Use Cases

Code generation & review

Based on overall model capabilities and architecture for coding tasks like generating functions, debugging, and refactoring

Gemini 3.1 Pro Preview Custom Tools

Customer support chatbot

Suitable for user-facing chat with competitive response times. Qwen3.5 397B A17B also offers lower per-token costs for high-volume support

Gemini 3.1 Pro Preview Custom Tools

Long document analysis

Larger context window (1049K tokens) can process longer documents, contracts, and research papers in a single pass

Gemini 3.1 Pro Preview Custom Tools

Batch data extraction

Lower output pricing ($2.45/M) reduces costs when processing thousands of records daily

Qwen3.5 397B A17B

Creative writing & content

Higher overall composite score (92/100) correlates with better nuance, coherence, and style in long-form content

Gemini 3.1 Pro Preview Custom Tools

Image understanding & OCR

Supports vision input - can analyze screenshots, diagrams, photos, and scanned documents directly

Gemini 3.1 Pro Preview Custom Tools
Which Should You Choose?
Our recommendation:
Gemini 3.1 Pro Preview Custom Tools

Gemini 3.1 Pro Preview Custom Tools clearly outperforms Qwen3.5 397B A17B with a significant 12.700000000000003-point lead. For most general use cases, Gemini 3.1 Pro Preview Custom Tools is the stronger choice. However, Qwen3.5 397B A17B may still excel in niche scenarios.

by Google

  • Choose for Quality - Marginally better benchmark scores; both are excellent
  • Choose for Reliability - Higher uptime and faster response speeds
  • Choose for Prototyping - Stronger community support and better developer experience
  • Choose for Production - Wider enterprise adoption and proven at scale

by Alibaba

  • Choose for Cost - 80% lower pricing; better value at scale
Capability Comparison
CapabilityGemini 3.1 Pro Preview Custom ToolsQwen3.5 397B A17B
Vision (Image Input)
Function Calling
Streaming
JSON Mode
Reasoning
Web Searchdiffers
Image Output
Monthly Cost Calculator
1,000tokens (600 in / 400 out)
100requests/day (3,000/month)

Gemini 3.1 Pro Preview Custom Tools

Google

$18.00
estimated monthly cost

Qwen3.5 397B A17B

Alibaba

Best Value
$3.63
estimated monthly cost

Qwen3.5 397B A17B saves you $14.37/month

That's 80% cheaper than Gemini 3.1 Pro Preview Custom Tools at 1,000 tokens/request and 100 requests/day.

Assumes 60% input / 40% output token ratio per request. Actual costs may vary based on your usage pattern.

Parameters & Context
ParameterGemini 3.1 Pro Preview Custom ToolsQwen3.5 397B A17B
Context Window1.0M256K
Max Output Tokens65,536--
Open SourceNoYes
CreatedFeb 25, 2026Feb 16, 2026
Last updated: 59m ago

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Gemini 3.1 Pro Preview Custom Tools vs Qwen3.5 397B A17B (2026) | LM Market Cap