OpenAI (ChatGPT)
OpenAI offers the ChatGPT family and GPT models as a SaaS, leading the field in reasoning, code and multimodal capability.
Anthropic (Claude)
Anthropic offers the Claude family as a SaaS, recognised for long-form reasoning, reliable code and safety.
Amazon Bedrock
Amazon Bedrock aggregates models from several providers as a SaaS, including Anthropic, Meta, Mistral and Amazon, behind a single managed API.
OpenRouter
OpenRouter aggregates hundreds of models as a SaaS behind a single interface, including the leading open Chinese models (DeepSeek, GLM, Qwen, Kimi),…
Azure AI Foundry
Azure AI Foundry, Microsoft's unified platform, provides SaaS access to a broad model catalogue, including GPT from OpenAI, Llama, Mistral and Phi,…