Gemini 3.1 Pro Preview vs Qwen3.5 397B A17B
API pricing, context window and capabilities for Gemini 3.1 Pro Preview and Qwen3.5 397B A17B, side by side. Prices are the cheapest listed serving route per 1M tokens, from LiteLLM and OpenRouter.
Verdict
computed from the published numbersGemini 3.1 Pro Preview wins on Terminal-Bench, on intelligence and on context window. Qwen3.5 397B A17B wins on price.
Price
Qwen3.5 397B A17B
Terminal-Bench
Gemini 3.1 Pro Preview
Intelligence
Gemini 3.1 Pro Preview
Context window
Gemini 3.1 Pro Preview
Key takeaways
who wins on what, from the published numbersGemini 3.1 Pro Preview wins
- Larger context window (1M vs 262K)
- Supports audio
Qwen3.5 397B A17B wins
- Cheaper input ($2.00 vs $0.164 /1M)
- Cheaper output ($12.00 vs $0.986 /1M)
- Higher max output (66K vs 262K)
- More serving providers (6 vs 7)
Cheaper overall
Qwen3.5 397B A17B
$0.164 + $0.986 /1M
Larger context
Gemini 3.1 Pro Preview
1M
More providers
Qwen3.5 397B A17B
7 providers
Pricing & specs
cheapest listed route · per 1M tokensOn-demand listed rates, OpenRouter routed quotes and Vercel reseller quotes. Enterprise commitments can be materially lower.
| Gemini 3.1 Pro Preview | Qwen3.5 397B A17B | |
|---|---|---|
| Input $/1M | $2.00via Google | $0.164via Aihubmix best |
| Output $/1M | $12.00via Google | $0.986via Aihubmix best |
| Context window | 1M best | 262K |
| Max output | 66K | 262K best |
| Serving providers | 6 | 7 best |
| Date | Released Feb 19, 2026 | Released Feb 16, 2026 |
Benchmarks
Benchmark scores, side by side| Gemini 3.1 Pro Preview | Qwen3.5 397B A17B | |
|---|---|---|
| Intelligence | 29.7 best | 18.4 |
| Terminal-Bench | 74% best | 51% |
| GPQA Diamond | 94% best | 89% |
| Output speed | 140 t/s best | 56 t/s |
| Latency (TTFT) | 26.52s | 2.44s best |
Cost calculator
choose a serving route for each sideInput tokens / month
Output tokens / month
Gemini 3.1 Pro Preview
via Google
$22
Qwen3.5 397B A17B
via Aihubmix
$1.81
Capabilities
feature support, side by side| Feature | Gemini 3.1 Pro Preview | Qwen3.5 397B A17B |
|---|---|---|
| Vision | ✓ | ✓ |
| Tool use | ✓ | ✓ |
| Reasoning | ✓ | ✓ |
| Audio | ✓ | — |
| Prompt caching | ✓ | ✓ |
| Structured output | ✓ | ✓ |
| Web search | ✓ | ✓ |
Related comparisons
Frequently asked questions
Which is cheaper, Gemini 3.1 Pro Preview or Qwen3.5 397B A17B?
Qwen3.5 397B A17B is cheaper for input ($2.00 vs $0.164 per 1M tokens) from Aihubmix. Qwen3.5 397B A17B is cheaper for output ($12.00 vs $0.986 per 1M tokens) from Aihubmix.
What is the context window difference between Gemini 3.1 Pro Preview and Qwen3.5 397B A17B?
Gemini 3.1 Pro Preview has a 1M-token context window and Qwen3.5 397B A17B has 262K tokens, so Gemini 3.1 Pro Preview can take a larger prompt.
How do Gemini 3.1 Pro Preview and Qwen3.5 397B A17B compare on benchmarks?
On the tracked benchmarks, Gemini 3.1 Pro Preview leads on Terminal-Bench, and Gemini 3.1 Pro Preview leads on intelligence.
Listed prices from LiteLLM, OpenRouter and Vercel · last checked Oct 14, 2026
Every weekday
AI moves fast. Here's your debrief.
News, analysis, tools, and more.
For people who build with AI