The platform
Grospan 4.
A workspace and API for teams who need AI-assisted software they can put in front of customers — predictable, instrumented, and easy to roll back.

Built around the call, not the chat.
Most AI platforms optimise for the demo: a slick chat surface and a long context window. Grospan 4 optimises for the call your service makes ten thousand times a day.
That means deterministic schemas, retries with backoff, idempotency keys, structured logs, and a refusal model your product team can read.
It also means honest evaluation — every change ships against a regression suite you author, with diffs you can review like code.
And it means costing you can plan around: usage shown per call, capped per project, and forecasted before you renew.
What's inside.
Long-context workflows
Multi-step plans with checkpointing — pause, inspect intermediate state, resume.
Native integrations
First-class connectors for Postgres, S3, GitHub, Notion, Slack, HubSpot and your internal HTTP APIs.
Built-in evaluations
Define your own quality bar. Every change ships against a regression suite you author.
Trace every call
Per-run traces, token accounting and model attribution piped into your existing OTel stack.
Roles & policies
Per-environment secrets, redaction, allow-listed tools and reviewable approvals.
EU-hosted by default
Hosted in France with regional options. Bring-your-own-cloud for regulated workloads.

From a single prompt to a versioned workflow.
Author multi-step plans visually or in code, snapshot them into a version, and promote across environments — staging, canary, production — with one command.
- — Visual planner
- — Inline evals
- — Per-step traces
- — One-click rollback
- — Shadow mode
- — Diffable configs
A posture you can hand to your risk team.
Data residency
EU-hosted by default with regional options for France, Germany and Belgium. No data leaves the bloc unless you ask.
SSO & audit
SAML and OIDC SSO on Growth and above. Every action — config change, deploy, key rotation — written to an immutable audit log.
Bring your own keys
Encrypt customer data at rest with KMS keys you control and can rotate without our involvement.

A logistics platform replaces six brittle scripts.
A mid-market freight forwarder consolidated their dispatch, exception handling, and customs ingestion onto Grospan 4 — reducing ticket volume by 41% in the first quarter and getting their ops team back to actual operations.
Tickets
Throughput
To production
Try it for €3.50.
35 credits. No sales call. 14-day money-back guarantee on every paid plan.