Qwen3.5-397B-A17B vs Gemini 2.5 Flash Comparison

Comparing Qwen3.5-397B-A17B and Gemini 2.5 Flash across benchmarks, pricing, and capabilities.

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Performance Benchmarks

Comparative analysis across standard metrics

3 benchmarks

Qwen3.5-397B-A17B outperforms in 3 benchmarks (GPQA, Humanity's Last Exam, SWE-Bench Verified), while Gemini 2.5 Flash is better at 0 benchmarks.

Qwen3.5-397B-A17B significantly outperforms across most benchmarks.

Tue Mar 17 2026 • llm-stats.com

Arena Performance

Human preference votes

Pricing Analysis

Price comparison per million tokens

Gemini 2.5 Flash costs less

For input processing, Qwen3.5-397B-A17B ($0.60/1M tokens) is 2.0x more expensive than Gemini 2.5 Flash ($0.30/1M tokens).

For output processing, Qwen3.5-397B-A17B ($3.60/1M tokens) is 1.4x more expensive than Gemini 2.5 Flash ($2.50/1M tokens).

In conclusion, Qwen3.5-397B-A17B is more expensive than Gemini 2.5 Flash.*

* Using a 3:1 ratio of input to output tokens

Lowest available price from all providers

Tue Mar 17 2026 • llm-stats.com

Qwen3.5-397B-A17B

Input tokens$0.60

Output tokens$3.60

Best providerNovita

Gemini 2.5 Flash

Input tokens$0.30

Output tokens$2.50

Best providerGoogle

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Context Window

Maximum input and output token capacity

Gemini 2.5 Flash accepts 1,048,576 input tokens compared to Qwen3.5-397B-A17B's 262,144 tokens. Gemini 2.5 Flash can generate longer responses up to 65,536 tokens, while Qwen3.5-397B-A17B is limited to 64,000 tokens.

Qwen3.5-397B-A17B

Input262,144 tokens

Output64,000 tokens

Gemini 2.5 Flash

Input1,048,576 tokens

Output65,536 tokens

Tue Mar 17 2026 • llm-stats.com

Input Capabilities

Supported data types and modalities

Both Qwen3.5-397B-A17B and Gemini 2.5 Flash support multimodal inputs.

They are both capable of processing various types of data, offering versatility in application.

Qwen3.5-397B-A17B

Text

Images

Audio

Video

Gemini 2.5 Flash

Text

Images

Audio

Video

License

Usage and distribution terms

Qwen3.5-397B-A17B is licensed under Apache 2.0, while Gemini 2.5 Flash uses a proprietary license.

License differences may affect how you can use these models in commercial or open-source projects.

Qwen3.5-397B-A17B

Apache 2.0

Open weights

Gemini 2.5 Flash

Proprietary

Closed source

Release Timeline

When each model was launched

Qwen3.5-397B-A17B was released on 2026-02-16, while Gemini 2.5 Flash was released on 2025-05-20.

Qwen3.5-397B-A17B is 9 months newer than Gemini 2.5 Flash.

Qwen3.5-397B-A17B

Feb 16, 2026

4 weeks ago

9mo newer

Gemini 2.5 Flash

May 20, 2025

10 months ago

Knowledge Cutoff

When training data ends

Gemini 2.5 Flash has a documented knowledge cutoff of 2025-01-31, while Qwen3.5-397B-A17B's cutoff date is not specified.

We can confirm Gemini 2.5 Flash's training data extends to 2025-01-31, but cannot make a direct comparison without Qwen3.5-397B-A17B's cutoff date.

Qwen3.5-397B-A17B

—

Gemini 2.5 Flash

Jan 2025

Provider Availability

Qwen3.5-397B-A17B is available from Novita. Gemini 2.5 Flash is available from Google. The availability of providers can affect quality of the model and reliability.