10% offGemini 3.1 Pro Preview API
Google·Text· 100.0% success (7d)
Gemini 3.1 Pro Preview
Pricing
Cheapest live price, per 1 million tokens.
Input / 1M tokens
$1.00 OpenRouter
Output / 1M tokens
$6.00 OpenRouter
Cache read / 1M
Repeated prompt prefixes
Cache write / 1M
Writing to the prompt cache
Cache read is the discounted rate for repeated prompt prefixes (system prompts, agent context).
Capabilities · 10
Specifications
- Context window
- 1M
- Max output
- 33K
- Type
- Text
- Creator
- Live sellers
- 58
- Requests / 24h
- 4,843
Price history · 60 days
Estimated monthly cost
30 days at the cheapest live price.
Benchmarks & reliability
LiveBench score + measured network performance. Leaderboard →
Quick start
OpenAI-compatible — change the base URL and key. Get a key from the dashboard.
from openai import OpenAI
client = OpenAI(
base_url="https://api.qubax.ai/v1",
api_key="YOUR_QUBAX_API_KEY",
)
response = client.chat.completions.create(
model="gemini-3.1-pro-preview",
messages=[{"role": "user", "content": "Hello!"}],
)
print(response.choices[0].message.content)About Gemini 3.1 Pro Preview
Gemini 3.1 Pro Preview is a language model developed by Google. It's particularly well-suited for analyzing images, screenshots, and visual content, tackling complex, multi-step reasoning problems, orchestrating tool-using agents that call APIs and external services, producing structured outputs for reliable data extraction and handling large contexts of up to 1M tokens. Its 1M-token context window means you can pass in entire documents, codebases, or conversation histories without losing context. It can write up to 33K tokens in a single response.
As of Nov 4, 2026, Gemini 3.1 Pro Preview costs $0.900 per 1M input tokens and $5.40 per 1M output tokens on Qubax, versus $1.00 / $6.00 on OpenRouter (10% less on input). A typical 1,000 chat requests (2K tokens in, 500 out) come to about $4.50. Measured availability over the last 7 days: 100.0%. 58 independent compute providers currently serve it, so requests fail over automatically. It handled 4,843 requests on Qubax in the last 24 hours. Pay with USDC, USDT, BTC, ETH or 350+ other coins — no credit card required.
Similar-priced alternatives
Frequently asked questions
How much does the Gemini 3.1 Pro Preview API cost?
On Qubax, Gemini 3.1 Pro Preview costs $0.900 per 1M input tokens and $5.40 per 1M output tokens. This is 10% cheaper than OpenRouter's price of $1.00 per 1M input tokens.
Is the Gemini 3.1 Pro Preview API compatible with OpenAI?
Yes. Qubax provides an OpenAI-compatible API. You can use Gemini 3.1 Pro Preview as a drop-in replacement by changing your base URL to https://api.qubax.ai/v1 and using your Qubax API key. It works with Cline, Cursor, OpenCode, Hermes Agent, and any tool that supports OpenAI APIs.
Why is Gemini 3.1 Pro Preview cheaper on Qubax than OpenRouter?
Qubax sources AI inference from an open compute marketplace on the Base blockchain where GPU providers compete on price. We pass the savings to you — 10% cheaper than OpenRouter's price for Gemini 3.1 Pro Preview.
How do I pay for Gemini 3.1 Pro Preview API usage?
Qubax uses prepaid crypto credits. Top up with USDC, USDT, BTC, ETH, SOL or 350+ other coins and your balance is deducted as you use the API. No credit card or KYC required.
What is the context window of Gemini 3.1 Pro Preview?
Gemini 3.1 Pro Preview supports a context window of 1M tokens, allowing you to process large documents, codebases, or long conversations in a single request.
What can I build with Gemini 3.1 Pro Preview?
You can use Gemini 3.1 Pro Preview to analyze images and visual content, tackle complex multi-step reasoning tasks, build autonomous agents that call external tools and APIs, generate structured JSON output for data pipelines and process long documents and entire codebases. Because it's served through Qubax's OpenAI-compatible API, integration into existing apps, agents, or workflows takes just a few lines of code.
How fast and reliable is Gemini 3.1 Pro Preview on Qubax?
Measured time to first token (p95) on Qubax is 8.0s. Its 7-day success rate is 100.0%. Responses stream token by token. 58 sellers serve it, so if one is slow or down the request moves to the next.
How good is Gemini 3.1 Pro Preview on benchmarks?
Gemini 3.1 Pro Preview scores 77.0 on LiveBench, ranking #4 of 16 models we track. At Qubax prices that is 38.1 points per $1 per 1M tokens.
Gemini 3.1 Pro Preview vs NVIDIA Nemotron 3 Ultra 550B: which should I choose?
Gemini 3.1 Pro Preview by Google and NVIDIA Nemotron 3 Ultra 550B by Other are both strong models in a similar price tier. Gemini 3.1 Pro Preview excels at complex reasoning and supports vision/image inputs. NVIDIA Nemotron 3 Ultra 550B comes from a different lab and may have different strengths depending on your workload. On Qubax, Gemini 3.1 Pro Preview starts at $0.900/1M input tokens while NVIDIA Nemotron 3 Ultra 550B comes in at $0.460/1M, so NVIDIA Nemotron 3 Ultra 550B may be worth considering if you need to minimize per-token cost. Both are available on Qubax with crypto payments and OpenAI-compatible APIs, so you can try each and switch freely.
Can I use Gemini 3.1 Pro Preview for commercial projects?
Yes. Gemini 3.1 Pro Preview on Qubax can be used for commercial purposes. You own the outputs you generate. Qubax provides the API infrastructure — you bring your use case.
Why use Gemini 3.1 Pro Preview on Qubax?
10% cheaper
Providers compete on price — you get the cheapest healthy seller.
Pay with crypto
350+ coins (BTC, ETH, SOL, USDT, USDC). No card, no KYC.
OpenAI & Anthropic compatible
Drop-in base URL. Works with Cline, Cursor, Claude Code, OpenAI and Anthropic SDKs.