ACL 2026: Let's Keep the NLP Conversation Going
ACL is one of the world's leading conferences for natural language processing (NLP), computational linguistics and large language models (LLMs). While Defined.ai missed this year's edition, we're continuing to support researchers, builders and AI teams with high-quality NLP training data, multilingual NLP datasets and LLM training data designed for real-world AI development.


175+
4M+
500+


Trusted by Leading AI Innovators
About ACL
The Association for Computational Linguistics (ACL) is one of the world’s leading computational linguistics conferences, bringing together researchers, engineers, and industry leaders working at the forefront of NLP, LLMs and AI-driven language technologies.
At Defined.ai, we actively support the NLP community by providing high-quality, ethically sourced datasets and text annotation services that enable scalable and responsible AI development.

Power Your Models with High-Quality NLP
From multilingual conversational data to domain-specific content and instruction tuning datasets, Defined.ai helps organizations develop more accurate, robust and inclusive AI systems. With support for over 500 languages, our marketplace provides the data foundations required for today's NLP and LLM applications.
Discover our end-to-end AI services

Data annotation
Defined.ai delivers model-in-the-loop, enterprise-grade data annotation services, combining an ethical approach by default, global expert annotators and scalable throughput.

Data collection
Secure, ethical data collection services for speech, audio, image, video and multimodal data—built for global diversity, regulatory compliance and enterprise-grade quality at scale.

Data and model evaluation
End-to-end data evaluation and model evaluation services to measure, validate and improve AI systems, from dataset quality to model performance benchmarking.

Conversational AI
Our conversational AI solutions are designed for real-world performance, supporting the full conversational stack from data to deployment.
Keep the Conversation Going Beyond ACL
Whether you're attending ACL this year or the next, conducting computational linguistics research, or deploying enterprise AI applications, Defined.ai remains the true end-to-end partner for high-quality, ethical data and fine-tuning expert services. Contact us and learn more