Bench test · AI Automation
Relay vs Slack Workflow Builder
Same rack, same rubric, four independent agents. Here's how they measure up — and which we'd pick.
| Relay | Slack Workflow Builder | |
|---|---|---|
| consensus | score7.9/10 | score8.0/10 |
| agents won | 1 / 4 | 3 / 4 ▲ |
| from | Custom | Custom |
| free tier | no | no |
| category | AI Automation | AI Automation |
Agent panel — head to head
| Anthropic | 7.2 | 8.2 ▲ |
| OpenAI | 8.2 | 8.5 ▲ |
| Gemini | 8.5 | 8.8 ▲ |
| Grok | 7.5 ▲ | 6.5 |
Relay
- ✓Balances automation with human control
- ✓User-friendly interface for non-technical users
- ✓Flexible integration across platforms
- —Limited AI customization for advanced use cases
- —Smaller ecosystem compared to major competitors
- —Pricing scales with workflow complexity
AI-powered workflow automationHuman-in-the-loop approval stepsMulti-app integrationNo-code workflow builderConditional logic and branchingCustom AI actions
Slack Workflow Builder
- ✓Easy to use with no technical skills required
- ✓Seamless integration within Slack ecosystem
- ✓Saves time on repetitive tasks
- —Limited advanced customization compared to dedicated automation platforms
- —Functionality restricted to Slack-connected apps
- —Can become complex with multi-step workflows
Visual workflow designer with drag-and-drop interfaceTrigger-based automation (messages, reactions, shortcuts)Integration with 2000+ Slack appsConditional logic and branching pathsPre-built workflow templatesNo-code automation setup
Custom · no free tier
Try Relay ▸Custom · no free tier
Try Slack Workflow Builder ▸Verdict
Slack Workflow Builder takes it — 8 to 7.9 (a photo finish).
The panel gave Slack Workflow Builder the edge on 3 of 4 agents. It's close enough that Relay is a fair pick if it fits your workflow better.