Gosper: Every AI model on one portal

Every model on one portal. Your team's private chat to the best AIs, and for the company: budgets, logs and control. Conversations can only be read by their author.

gosper — contact

Get in touch

Your teams already use AI. Your data goes with it.

  1. Today

    Your documents at the AI giants

    Contracts, HR files and customer data pasted into personal accounts, stored abroad with no guarantees.

    With Gosper

    History stays in Gosper

    No personal accounts, no memory at the providers beyond their contractual retention: history is kept in Gosper, encrypted.

  2. Today

    Sensitive data sent as is

    Customer data: first and last names, addresses, sometimes even access keys.

    With Gosper

    Masked or blocked before sending

    Emails, phone and social security numbers become tokens. IBAN, card or access key: request blocked.

  3. Today

    No trail

    Nobody knows who sends data to the models or which files are involved. After an incident, nothing to reconstruct.

    With Gosper

    Everything logged, nothing read

    SSO sign-in, a full log of sensitive file use per model, with the date and the client used (browser or terminal).

  4. Today

    A bill that keeps growing

    Subscriptions on expense reports, and every message resends the whole conversation.

    With Gosper

    Tokens under control

    A bounded context instead of the full history, a budget per team, an 80% alert.

Pick the model. Gosper handles the rest.

Claude, GPT, Gemini or Mistral, picked in each conversation, without stacking subscriptions. Same encrypted history, same log, same budget.

gosper — chatClaude Fable 5.1

Pick a model, then a question below.

Your files, your rules.

Paste a contract into a consumer tool and you risk a leak without even knowing it. Here, everyone sees and sends the AI only their team's files, at the planned confidentiality level and with an approved model. Switch employee or model: the list follows the permissions.

Employee

Model

gosper — driveGoogle Drive · synced

Claire L. · Legal · Claude Fable 5.1

Files usable with AI2 of 4

Brochure-2026.pdfSalesStandard
Client-contract.pdfLegalConfidential

2 files hidden: 2 reserved for other teams.

A bounded context. Not an exponential bill.

Without context management, every message resends the whole conversation to the model, and the bill follows. Gosper builds a context that fits the model's budget: latest exchanges, summary and pinned items. Every team has its own budget in euros, with an 80% alert.

The whole history, resent with every message39,500 tokens
The context Gosper builds · last 5 exchanges + summary5,966 tokens
  • Summary of older exchanges
  • Latest complete exchanges
  • Current message
  • Chat window: 16,384 tokens
800,000tokens sent in total if the whole history is resent
221,310tokens sent in total with the Gosper context

Estimate (characters ÷ 4) on the repository's reference workload: 2,000-character messages and replies. Gosper context computed with the context engine rules: 16,384-token chat window, 2,048 reserved for the reply, 512 margin, cautious estimate, summary of at most 300 words from 8 messages on. Neither a provider count nor a bill.

This month's budgets

Engineering Alert 80%€712 / €800
€88 left · admins notified
Data€296 / €400
€104 left
Marketing€118 / €300
€182 left

What you write stays yours.

Each conversation can only be read by its author and stays encrypted at rest. The company sees who, which model and how much, never what was written. And personal data is masked before it reaches the provider. Your data stays inviolable day to day: no emergency access is possible without the joint, auditable and inseparable authorization of your company and Gosper.

gosper — chat · Claire L.
Sensitive file attachedProjet-DPA.pdfConfidential

Summarize the obligations in the attached DPA draft, especially employee information.

Three obligations: inform employees, consult the works council, document proportionality.

Claire reads her conversations in clear. At rest they are encrypted and isolated: nobody else can read them.

User
Claire Lambert
Model
Claude Fable 5.1
Tokens
4.2k / 1.8k
Cost
€0.084
Attached file
Projet-DPA.pdf Confidential
Content
encrypted, unreadable
AnthropicOpenAIGeminiMistralpersonal data masked before sending

The portal, the terminal, mobile.

The same models, files and rules wherever you work. Claude Code and Codex route through Gosper too, unmodified.

gosper.fr/chat
CL

Good morning, Claire.

How can I help today?

+Send a message… (Enter to send, Shift+Enter for a new line)Claude Fable 5.1▾

What the company keeps in hand.

providers, your choice

Anthropic, OpenAI, Gemini, Mistral, or any provider you want: each one plugs in behind the same account and the same rules.

AnthropicOpenAIGeminiMistral+ yours
3

confidentiality levels

Every drive document is classified. The rule applies before anything is sent to a model.

StandardConfidentialAI forbidden
1

reader per conversation

Its author, and no one else in the company. Content is encrypted at rest.

AES-256-GCM
0

prompts in the log

The log keeps who, which model, how much and what cost. Never the text exchanged.

Claire L. · Claude · 4,2k tokenscontent : —

Ready for your DPO and works council.

The DPA, record of processing, employee notice and usage charter are provided. Data export and purge are built in.

gosper — compliance
Data processing agreement (DPA)PDFReady to sign
Record of processingXLSXProvided
Employee information noticeDOCXProvided
Data export and purgeBuilt-in proceduresTested

AI usage charter · v3

Accepted by198 / 214

Requested at first sign-in, and again for every new version.

Charter acceptedv3

Govern AI without slowing your teams down.

Start the journey with us.

Every model · Your drive · Your rules

Talk to us

Tell us about your context, we'll get back to you within one business day.

Team size
  • 10 – 50
  • 50 – 250
  • 250 – 1 000
  • 1 000 +