AI model API prices

What do the leading AI models cost through their APIs, per million tokens?

Flagship models from Anthropic, OpenAI, Google, xAI, Mistral and DeepSeek, at each provider's standard rate for ordinary prompts, without batch, caching, fast-mode or long-context changes. Some providers charge more for very long prompts, and that isn't shown here. Where a provider has announced a new price, it gets its own row. Values come only from each provider's own pages. Not a complete list of models.