The best AI tool for agent assist & reply drafting
for customer support professionals
We tested the best AI tools for agent assist & reply drafting for customer support professionals in 2026. Here's what won, and what the runners-up are good for.
Zendesk
After testing against real customer support professionals workflows in Q1 2026, Zendesk is the clear winner for agent assist & reply drafting. It excels where other tools fall short: ai-drafted agent replies. The gap between Zendesk and the runners-up is meaningful in day-to-day use.
What separates Zendesk from the competition is how it handles the edge cases that come up in real customer support professionals work, not just the showcase demos. For customer support professionals specifically, that distinction matters more than raw benchmark scores.
What it gets right
- Reply drafts grounded in help content and history
- Ticket summarization saves ramp time
- Tone and length adjustment on the fly
Where it falls short
- Requires Zendesk platform
- Premium AI features cost extra
- Draft quality depends on knowledge base
The runners-up
Intercom Fin
Intercom’s Fin works as both an agent-side copilot, suggesting replies, surfacing knowledge, summarizing threads, and an autonomous agent that resolves tickets outright. For teams already on Intercom it is the cleanest path, with mature handoff flows when confidence is low. Pricing is increasingly per-resolution, so cost tracks value.
Cresta
Cresta is the standout for live, in-the-moment agent assist: it listens to ongoing calls and chats and surfaces next-best actions, knowledge citations, and coaching as the conversation happens. It is more contact-center-oriented and quote-priced than Zendesk’s copilot, but for teams that want guidance during the interaction rather than after, it leads the category.
Forethought
Forethought’s Assist module copilots agents with suggested responses and summaries, and bolts onto Zendesk, Salesforce, Freshdesk, and others without replacing them. It pairs naturally with its triage and autonomous-resolution modules. A good fit for ops teams that want to augment human agents while keeping their existing ticketing platform.
Common questions about AI for agent assist & reply drafting
Does agent assist actually speed up replies?
Yes, drafting and summarization cut handle time meaningfully, especially for new agents. The agent still reviews and sends.
Can it match our support tone?
Tone controls and brand guidance shape the drafts; feed it examples of your voice for best results.
Is this different from full automation?
Yes, agent assist keeps a human sending the reply, where deflection resolves without one. Many teams run both.
Will it summarize long ticket threads?
Summarization of history is a core feature and one of the biggest time-savers for escalations and handoffs.
Not a support professional?
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