Opper AI
Category: AI Developer Tools
Opper AI provides a developer-focused platform and Task Completion API to build reliable, production-grade AI applications. It is designed to turn large language models into dependable systems for business-critical tasks. Opper AI was founded in 2023. The company is led by Göran Sandahl. Based in Stockholm, Sweden. Team size: 1-10. Total funding raised: $3 million. Latest round: Pre-seed, $3.0M, 2025-07, led by Luminar Ventures. Key investors include Luminar Ventures, Emblem Venture Capital, Greens Capital.
- Founded
- 2023
- Headquarters
- Stockholm, Sweden
- Team size
- 1-10
- Total funding
- $3 million
Value proposition
To provide a robust infrastructure layer that makes building with AI models as reliable and predictable as using Stripe for payments. It enables developers to move from fragile prototypes to dependable, production-ready AI features with confidence.
Products and solutions
Task Completion API, AI application tracing and evaluation tools, Unified endpoint for over 80 large language models
Unique value
The core innovation is the concept of 'Task Contracts', which allows developers to define AI tasks, inputs, outputs, and success criteria in a structured JSON format. This abstracts away the complexity and fragility of prompt engineering, leading to more reliable and repeatable results from LLMs.
Target customer
Software developers and technology companies building AI-powered features that require high reliability, safety, and consistency for production environments.
Industries served
Software Development, Technology, Healthcare Technology
Technology advantage
Founded by a proven team with deep experience in building and scaling production-grade enterprise systems (Unomaly). The platform offers model-agnostic task execution, allowing developers to leverage over 80 LLMs through a single API, with built-in evaluation and feedback loops to enhance reliability.
How they differentiate
Opper's primary differentiation is its 'Task Contract' abstraction layer, which replaces manual prompt engineering with structured JSON-based task definitions. This is designed to ensure higher reliability and consistency for production-grade, business-critical AI applications, a key pain point with standard LLM APIs.
Main competitors
LangChain, LlamaIndex, Vercel AI SDK, OpenAI Assistants API
Key partnerships
No public strategic partnerships have been announced.
Notable customers
GetTested.io
Major milestones
Founded in 2023 by the experienced team from the acquired startup Unomaly., Secured $3 million in an oversubscribed pre-seed funding round., Launched its Task Completion API to the public.
Growth metrics
Successfully launched its Task Completion API and secured an oversubscribed pre-seed funding round. Onboarded initial customers for use cases like automating blood test result analysis.
Market positioning
Positioned as a developer-first infrastructure platform for building dependable and production-ready AI applications, aiming to become a standard reliability layer on top of base models.
Geographic focus
Primarily Europe, with a secondary focus on North America.
Patents and IP
No public patents have been disclosed.
About Göran Sandahl
Göran Sandahl is a seasoned technology executive and entrepreneur with extensive experience in AI, cybersecurity, and software development. He is the co-founder and CEO of Opper AI, a Swedish AI startup focused on building reliable and secure AI infrastructure. Previously, he was the co-founder and CTO of Unomaly, a machine learning startup that was acquired by LogicMonitor in 2020. He has also held leadership roles at LogicMonitor and has a background in cybersecurity, having worked as a Security Architect and Consultant at Integralis AB and a Security Analyst at Sentor MSS AB.
Official website: https://opper.ai/