Opper AI
Cybersecurity · Security Compliance
Overview
Access 700+ leading AI models through one EU-hosted API. Control spending, data privacy, and model access. OpenAI SDK compatible, GDPR-compliant, pay-as-you-go.
Funding and backers
Backers
3
Antler, Emblem
Momentum
15/100
in the news
Last sign of life
1 mo ago
a posting or a news item
The story so fareach stage dated by its source: the company's releases, the press, registers, filings
Mar 24
On the Hacker News front page Show HN: AI Roundtable – Let 200 models debate your question · 118 points
Jul 15, 2025
Launched on Hacker News Show HN: Opper AI – Task-Completion API for LLMs
2023
Founded
Tractionpublic signals, read monthly
Backed byfrom the funds' portfolios and accelerator catalogs
Antler 
Emblem 
Luminar Ventures Investors in similar startupsfunds that back the companies most like this one
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Connections
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Owner
Same company
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Likely
News
Jev vs. Kev: an open-source Jev alternative, tested side by side
We ran Kev 4B, an open reproduction of Jev, against Jev 1.13 on 362 questions written after both shipped: accuracy, calibration, token counts and speed.
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Stats - 31,702 AI Roundtable sessions analyzed Opper
Aggregate stats from 31,702 AI Roundtable sessions across 200+ LLMs: consensus rates, most influential models, win rates, and trending subjects.
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AI Roundtable Compare AI Models on Any Question
Ask a question and let 200+ AI models vote, debate, and reach consensus. Compare ChatGPT, Claude, Gemini, Grok, and more side by side.
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Car Wash Test on 53 leading AI models: "I want to wash my car. The car wash is 50 meters away. Should I walk or drive?"
The car wash test is the simplest AI reasoning benchmark that nearly every model fails. We tested 53 models through Opper, first once each, then 10 times. Only 5 passed consistently.
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Introduction to Schema Based Prompting: Structured inputs for Predictable outputs
Schema based prompting is a technique that allows for instructing models through clear data structures instead of natural language prompts. This post introduces the concept and shows how to use it with Opper.
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Introducing Opperator: A composable agent to automate tasks on the web
Opperator is a programmable, autonomous web agent for automating tasks on the web built with the Opper SDK.
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Offices
Where the company hires and what each office is for
Cities
1
Hiring now
0
Countries
1
Danderyd
Sweden
HQ
Västerängsvägen 51 A, Enebyberg, 182 47, SE