The big leap: 1M context, smarter tool use
Claude Opus 4.7 is the first frontier model in our stack that lets us push entire customer codebases, weeks of CRM history or full product documentation into a single agent run — without RAG glue. For long-running agentic workflows, that changes the architecture: less retrieval, more direct reasoning.
Where Opus 4.7 wins for agents
- Persistent task context. Multi-step browser automations no longer lose state mid-flow.
- Better refusal & recovery. When a tool call fails, the agent now self-corrects instead of looping.
- Cheaper Haiku 4.5 hand-offs. We route planning to Opus and execution to Haiku — and the model knows when to delegate.
A real workflow we ship
For a recent CRM client, we built a lead-qualification agent that:
- Pulls inbound contact-form data from MySQL.
- Enriches it with a Clearbit-style scrape (Playwright + headless Chrome).
- Scores the lead against a custom rubric using Opus 4.7.
- Writes the qualified lead back into the CRM with a one-paragraph rationale.
End-to-end latency dropped from 90s on Sonnet 4.6 to 38s on Opus 4.7 — and we removed two retry layers we no longer needed.
Should you migrate today?
If you\'re running Sonnet 4.6 agents in production and hitting either context limits or tool-call brittleness, yes — the upgrade is mostly drop-in. Watch token costs on long sessions; the bigger window is great until your bill catches up.
If you\'re scoping an agent build and want a second opinion on which Claude tier to anchor on, talk to our team.