vspec vs Bluejay
Bluejay and vspec both automate E2E testing for voice AI agents. The difference is in who they're built for — and whether you can find out the price before you sign up.
Side by side.
| Feature | vspec | Bluejay |
|---|---|---|
| Works with any phone number | ✓ Any platform, any number | Voice, chat & IVR agents |
| Free tier | ✓ 5 free credits on signup | ✗ Not disclosed |
| Transparent pricing | ✓ From €0, listed publicly | ✗ Not published |
| Self-serve signup | ✓ Instant | Contact required |
| E2E voice call simulation | ✓ | ✓ |
| Scenario / spec definition | ✓ Web UI, define once | ✓ Auto-generated + custom |
| CI/CD integration | ✓ API webhooks (Solo plan+) | ✓ |
| A/B testing | ✗ | ✓ |
| Load testing | ✗ | ✓ 500+ variables |
| Slack / Teams notifications | Webhooks | ✓ Native integrations |
| Multilingual testing | Depends on agent | ✓ Accents & noise environments |
| Pass/fail per scenario | ✓ Clear, per-spec results | ✓ |
| Setup time to first test | Under 2 minutes | Not published |
| Target audience | Indie devs, startups, small teams | AI startups, faster release teams |
Bluejay is a capable testing platform with advanced load testing and team-oriented features. But if you need to know what something costs before you commit — or you want to run your first test in minutes without contacting anyone — vspec is the answer. Simple, transparent, and available right now.
Test your agent today,
not next week.
No gated access
Sign up, get 5 credits, run a spec. No demo request, no waitlist, no "get in touch." vspec is open to everyone immediately.
Clarity over complexity
Define your scenarios in plain language via the Web UI. What happens when an aggressive caller tries to game your agent? Define it once, run it forever.
Know the price upfront
€0 free tier, €19/month Solo, €59/month Team. No surprises. Bluejay's pricing is undisclosed — you won't know until you're in a sales conversation.
Run your first spec
in 2 minutes.
Free tier. No credit card required. Works with any AI voice agent.
Start testing for free →