Product · Prompt Studio · 7-day free trial · From €19/mo
Twelve guided fields and twenty proven prompt-engineering frameworks turn vague AI requests into reliable, repeatable output. Pick a model, set role, audience, and constraints, stream the result, save to history. Free OpenRouter models on every plan; premium models (GPT-5, Claude Sonnet/Opus, Gemini Pro, Grok) on Pro and Team.
Capabilities
Prompt Studio is built on the observation that almost every "bad AI output" is actually a missing-context problem. Capture the context once, in twelve fields, and the same input produces consistent output across every model and every teammate.
Goal, audience, role, background, constraints, format, tone, examples, length, complexity, priority, language. Every field you fill in removes an ambiguity the model would otherwise have to guess at. Only the Goal field is required — the rest are leverage.
CO-STAR, RTF, FEW-SHOT, RISE, TRACE, CREATE, BAB, PAIN, GRADE, SCOPE, STAR, SOAR, ROSES, 5W1H, PREP, TAG, PROMPT, ERA, APE, CARE. The system scores each framework against your inputs and picks the highest-match — no guessing which structure to use.
Trinity Large, Llama 3.3 70B, Mistral Small 3.1, Qwen3 80B, GLM-4.5 Air, Step 3.5 Flash, LFM 2.5 Thinking — free on every plan. Pro unlocks the budget premium tier (GPT-4o-mini, Claude Haiku, Gemini Flash). Team unlocks the full catalog including GPT-5, Claude Sonnet/Opus, Grok, Gemini Pro.
The refined prompt appears word by word as the model generates it. Copy the moment the structure stabilises — no waiting for a full response, no spinner stalls.
Every prompt you generate is saved to your workspace history. Re-open any past run with one click, edit one field, re-generate. Save winning prompts as templates so the whole team uses the same setup.
Pick Markdown, JSON, code, plain text, HTML, XML, CSV, or step-by-step. Set tone (technical, persuasive, academic, eight more), length (concise → comprehensive), complexity, and priority. Two people running the same task should get comparable output.
The 12 fields
Only the Goal field is required. Everything else is leverage — the more you tell the system, the more specific the output. Empty fields are skipped entirely, not zero-padded with placeholder text.
Goal
The outcome — what should the AI produce?
Audience
Who will read or use the output?
Role
What persona or expertise should the AI adopt?
Background
Context, facts, or situation the model needs.
Constraints
Hard rules: never use X, must include Y.
Format
Markdown, JSON, code, brief, step-by-step…
Tone
Technical, conversational, persuasive, academic…
Examples
Reference inputs and outputs to anchor quality.
Length
Concise, standard, detailed, or comprehensive.
Complexity
Reading level and technical depth.
Priority
Speed, balanced, quality, or creative bias.
Language
12 output languages: EN, DE, FR, ES, RU, JA, ZH and more.
How it works
Type what you want the AI to produce. Minimum ten characters. If you can't summarise the task in one sentence, the AI almost certainly will not deliver it in one prompt — break it down and run them separately.
Background, role, audience, success criteria, examples. Only fill what's relevant — empty fields are skipped, not zero-padded. Examples are the highest-leverage field by far.
Choose your model from the dropdown (gated by your plan). Set format, tone, length, complexity, priority, and language. The dropdown only shows models your plan can call — no silent fallback to a different model.
The refined prompt streams back word by word. Copy when it stabilises. Saved to history automatically — restore inputs any time with one click. Save winners as templates so the whole workspace can use them.
Who uses it
Anyone using AI more than once a week — and especially anyone using it across a team — sees the value within the first hour.
Set the goal (five-page literature review), audience (graduate seminar), role (academic writer), constraints (cite three primary sources), format (Markdown with footnotes). The prompt that comes out delivers usable output the first try — not on the third revision.
Save your brand voice as a tone preset, ICP as audience, messaging rules as constraints. Every marketer on the team produces output that sounds like one company — even on Friday afternoon, even from a freelancer, even at scale.
The Background field holds the prospect's company, role, recent funding, and trigger event. The Role field defines your seller's voice. The output is a cold email that references their last podcast appearance and ties it to your offer — not the same generic intro that everyone else sent.
Once you've structured a quarterly report prompt, anyone on the team can re-run it next quarter with new numbers. History keeps the input as a template; the output stays consistent. The work that was a hero project becomes a reusable workflow.
What's different
The market is saturated with ChatGPT skins and generic prompt-template libraries. Prompt Studio earns its place by being deliberately opinionated about structure, framework selection, and where your data lives.
ChatGPT is great for one-off conversations. It does not give you structure, repeatability, or team workflow. Prompt Studio is the structured layer on top — the same prompt produces the same output every time, across every model.
Most prompt-engineering tools default to one or two famous frameworks. Prompt Studio scores all twenty and picks the right one — with an explicit guard against the over-represented ones (CO-STAR, RTF, FEW-SHOT) so you don't get the same shape for every task.
The first line of every generated prompt names the framework and the signals that selected it. You see the reasoning, not just the output — useful when teaching the workflow to a teammate or auditing why a prompt worked.
All workspace data lives in Supabase Frankfurt (EU). Authentication via Clerk with EU Standard Contractual Clauses. A standard DPA is available for B2B engagements. GDPR-compliant by default, no telemetry, your prompts never train models.
7-day free trial · 30-day money-back · Cancel any time
If you use ChatGPT, Claude, or Gemini more than once a week, Prompt Studio saves you hours and removes the inconsistency. Pro at €19/mo covers solo operators; Team at €99/mo covers organisations and unlocks the full premium-model catalog plus bring-your-own provider key.