Research
Question Answering over Document Corpora
Answering natural language questions from a fixed document corpus with source attribution.
Recommended agents
CohereAnthropicOpenAI
Command R+
Enterprise RAG specialist. Built for retrieval pipelines, not chat.
Claude Sonnet 4.6
The workhorse. Faster than Opus, smarter than Haiku, the model most production deployments end up on.
OpenAI Assistants API
OpenAI's hosted agent runtime. Threads, tools, file search, code interpreter — managed for you.
Budget pick
Command R+
$2.50-$10 per million tokens
Key considerations
- ›Out-of-scope question handling
- ›Citation format
- ›Update latency