Best LLM API Providers of 2025 - Reviews & Comparison

Compare the Top LLM API Providers as of June 2025

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What are LLM API Providers?

LLM API providers offer developers and businesses access to sophisticated language models and LLM APIs via cloud-based interfaces, enabling applications such as chatbots, content generation, and data analysis. These APIs abstract the complexities of model training and infrastructure management, allowing users to integrate advanced language understanding into their systems seamlessly. Providers typically offer a range of models optimized for various tasks, from general-purpose language understanding to specialized applications like coding assistance or multilingual support. Pricing models vary, with some providers offering pay-as-you-go plans, while others may have subscription-based pricing or free tiers for limited usage. The choice of an LLM API provider depends on factors such as model performance, cost, scalability, and specific use case requirements. Compare and read user reviews of the best LLM API providers currently available using the table below. This list is updated regularly.

1

Cohere

Cohere AI

Cohere is an enterprise AI platform that enables developers and businesses to build powerful language-based applications. Specializing in large language models (LLMs), Cohere provides solutions for text generation, summarization, and semantic search. Their model offerings include the Command family for high-performance language tasks and Aya Expanse for multilingual applications across 23 languages. Focused on security and customization, Cohere allows flexible deployment across major cloud providers, private cloud environments, or on-premises setups to meet diverse enterprise needs. The company collaborates with industry leaders like Oracle and Salesforce to integrate generative AI into business applications, improving automation and customer engagement. Additionally, Cohere For AI, their research lab, advances machine learning through open-source projects and a global research community.

1 Rating

Starting Price: Free

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2

Claude

Anthropic

Claude is an artificial intelligence large language model that can process and generate human-like text. Anthropic is an AI safety and research company that’s working to build reliable, interpretable, and steerable AI systems. Large, general systems of today can have significant benefits, but can also be unpredictable, unreliable, and opaque: our goal is to make progress on these issues. For now, we’re primarily focused on research towards these goals; down the road, we foresee many opportunities for our work to create value commercially and for public benefit.

1 Rating

Starting Price: Free

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3

Azure OpenAI Service

Microsoft

Apply advanced coding and language models to a variety of use cases. Leverage large-scale, generative AI models with deep understandings of language and code to enable new reasoning and comprehension capabilities for building cutting-edge applications. Apply these coding and language models to a variety of use cases, such as writing assistance, code generation, and reasoning over data. Detect and mitigate harmful use with built-in responsible AI and access enterprise-grade Azure security. Gain access to generative models that have been pretrained with trillions of words. Apply them to new scenarios including language, code, reasoning, inferencing, and comprehension. Customize generative models with labeled data for your specific scenario using a simple REST API. Fine-tune your model's hyperparameters to increase accuracy of outputs. Use the few-shot learning capability to provide the API with examples and achieve more relevant results.

Starting Price: $0.0004 per 1000 tokens

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4

AI21 Studio

AI21 Studio

AI21 Studio provides API access to Jurassic-1 large-language-models. Our models power text generation and comprehension features in thousands of live applications. Take on any language task. Our Jurassic-1 models are trained to follow natural language instructions and require just a few examples to adapt to new tasks. Use our specialized APIs for common tasks like summarization, paraphrasing and more. Access superior results at a lower cost without reinventing the wheel. Need to fine-tune your own custom model? You're just 3 clicks away. Training is fast, affordable and trained models are deployed immediately. Give your users superpowers by embedding an AI co-writer in your app. Drive user engagement and success with features like long-form draft generation, paraphrasing, repurposing and custom auto-complete.

Starting Price: $29 per month

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