Give models access to web search, code execution, and more. Explore what each tool does, compare providers and pricing, and find out how to use it. Read the server tools guide.
Consult a stronger model mid-generation
Give any model the current date and time, in UTC or a configured timezone
Call multiple models and then use another model to synthesize a final answer
Generate images from text prompts with any model
A sandboxed hosted shell for any model
Delegate tasks to a smaller, faster model
Fetch and extract content from URLs
Search the web for current information
Let models propose file edits as V4A diffs Anthropic-style bash tool with optional sandboxed execution
Load tool definitions on demand instead of up front
source & further reading
openrouter.ai — original article