--- description: Clef-flash is a fast 9B multimodal decision model that turns a state and a schema of typed questions into decisions. It reads the state as text, JSON, images, or video, and returns a probability for every allowed option of every question. title: clef-flash image: https://developers.cloudflare.com/og-docs.png --- [Skip to content](#main-content) > Documentation Index > Fetch the complete documentation index at: https://developers.cloudflare.com/llms.txt > Use this file to discover all available pages before exploring further. ![Cloudflare logo](https://developers.cloudflare.com/_astro/cloudflare.DP8rkHys.svg) # clef-flash Text Generation • Cloudflare Copy as Markdown| [View as Markdown](https://developers.cloudflare.com/workers-ai/models/clef-flash/index.md)| [Agent setup](https://developers.cloudflare.com/agent-setup/) `@cf/cloudflare/clef-flash` - Cloudflare-hosted - Vision Clef-flash is a fast 9B multimodal decision model that turns a state and a schema of typed questions into decisions. It reads the state as text, JSON, images, or video, and returns a probability for every allowed option of every question. | Model Info | | | --- | --- | | Context Window [ ↗](https://developers.cloudflare.com/workers-ai/platform/glossary/) | 65,536 tokens | | Terms and License | [link ↗](https://huggingface.co/Cloudflare/clef-flash/blob/main/LICENSE) | | More information | [link ↗](https://huggingface.co/Cloudflare/clef-flash) | | Vision | Yes | | Unit Pricing | $0.09 per M input tokens | ## Usage ```ts export interface Env { AI: Ai; } export default { async fetch(request, env): Promise { const response = await env.AI.run("@cf/cloudflare/clef-flash", { model: "clef-flash", state: "Checkout has been failing for every customer for the last hour.", questions: { urgent: { type: "noul", instructions: "Is this support request urgent?", }, team: { type: "choice", instructions: "Which team should handle this request?", criteria: { billing: "Payments, invoices, and refunds", technical: "Outages, errors, and configuration", sales: "Plans and upgrades", }, }, severity: { type: "score", instructions: "How severe is the customer impact?", criteria: ["No impact", "Minor", "Major", "Critical"], }, }, }); // response.answers.urgent -> probability the request is urgent // response.answers.team -> chosen team with per-option probabilities // response.answers.severity -> probability-weighted score (0 = lowest level) return Response.json(response); }, } satisfies ExportedHandler; ``` ```py import os import requests ACCOUNT_ID = "your-account-id" AUTH_TOKEN = os.environ.get("CLOUDFLARE_AUTH_TOKEN") response = requests.post( f"https://api.cloudflare.com/client/v4/accounts/{ACCOUNT_ID}/ai/run/@cf/cloudflare/clef-flash", headers={"Authorization": f"Bearer {AUTH_TOKEN}"}, json={ "model": "clef-flash", "state": "Checkout has been failing for every customer for the last hour.", "questions": { "urgent": { "type": "noul", "instructions": "Is this support request urgent?", }, "team": { "type": "choice", "instructions": "Which team should handle this request?", "criteria": { "billing": "Payments, invoices, and refunds", "technical": "Outages, errors, and configuration", "sales": "Plans and upgrades", }, }, "severity": { "type": "score", "instructions": "How severe is the customer impact?", "criteria": ["No impact", "Minor", "Major", "Critical"], }, }, }, ) print(response.json()) ``` ```sh curl https://api.cloudflare.com/client/v4/accounts/$CLOUDFLARE_ACCOUNT_ID/ai/run/@cf/cloudflare/clef-flash \ -X POST \ -H "Authorization: Bearer $CLOUDFLARE_AUTH_TOKEN" \ -d '{ "model": "clef-flash", "state": "Checkout has been failing for every customer for the last hour.", "questions": { "urgent": { "type": "noul", "instructions": "Is this support request urgent?" }, "team": { "type": "choice", "instructions": "Which team should handle this request?", "criteria": { "billing": "Payments, invoices, and refunds", "technical": "Outages, errors, and configuration", "sales": "Plans and upgrades" } }, "severity": { "type": "score", "instructions": "How severe is the customer impact?", "criteria": ["No impact", "Minor", "Major", "Critical"] } } }' ``` ## Parameters model `string`requiredpattern: ^\\s\*(clef|clef-flash)\\s\*$Required. The model selector: "clef" for @cf/cloudflare/clef, "clef-flash" for @cf/cloudflare/clef-flash. state requiredRequired. The content to evaluate: a string, or structured data (object/array) such as records, chat logs, or application state. Long text state is truncated to fit the model's token limit. ▶questions{} `object`requiredminProperties: 1maxProperties: 64Map of question id to a typed question (noul, choice, or score). 1 to 64 questions; ids may use letters, digits, '\_', '.', '-' (max 100 chars). Answers are returned under the same ids. ▶images\[] `array`maxItems: 4Clef extension to the System One API. Optional embedded PNG, JPEG, or WebP images placed before the state (max 4; 4 MiB and 16 megapixels each, 8 MiB total decoded; whole request body max 13 MiB). Remote URLs are not accepted. model `string`The model that performed the evaluation. ▶answers{} `object`One answer per question, keyed by the question ids from the request. ▶usage{} `object` ## API Schemas (Raw) Input [Open](https://developers.cloudflare.com/workers-ai/models/clef-flash/schema-input.json) [Download](https://developers.cloudflare.com/workers-ai/models/clef-flash/schema-input.json) Output [Open](https://developers.cloudflare.com/workers-ai/models/clef-flash/schema-output.json) [Download](https://developers.cloudflare.com/workers-ai/models/clef-flash/schema-output.json) Was this helpful? YesNo ## On this page [![](https://developers.cloudflare.com/_astro/logo.te5VL_aD.svg)Docs](https://developers.cloudflare.com/) ```json {"@context":"https://schema.org","@type":"TechArticle","@id":"https://developers.cloudflare.com/workers-ai/models/clef-flash/#page","headline":"clef-flash","description":"Clef-flash is a fast 9B multimodal decision model that turns a state and a schema of typed questions into decisions. It reads the state as text, JSON, images, or video, and returns a probability for every allowed option of every question.","url":"https://developers.cloudflare.com/workers-ai/models/clef-flash/","inLanguage":"en","image":"https://developers.cloudflare.com/og-docs.png","publisher":{"@type":"Organization","name":"Cloudflare","description":"One platform for your apps, agents, and workforce. Build, secure, and scale without managing infrastructure","url":"https://www.cloudflare.com/","sameAs":["https://github.com/cloudflare","https://www.linkedin.com/company/cloudflare","https://x.com/cloudflare"],"logo":{"@type":"ImageObject","url":"https://developers.cloudflare.com/logo.svg"},"address":{"@type":"PostalAddress","streetAddress":"101 Townsend St","addressLocality":"San Francisco","addressRegion":"CA","postalCode":"94107","addressCountry":"US"},"contactPoint":[{"@type":"ContactPoint","contactType":"Customer Support","url":"https://support.cloudflare.com/","availableLanguage":["English"]},{"@type":"ContactPoint","contactType":"Sales","url":"https://www.cloudflare.com/contact/","availableLanguage":["English"]}]},"isPartOf":{"@type":"WebSite","@id":"https://developers.cloudflare.com/#website","name":"Cloudflare Docs","url":"https://developers.cloudflare.com/"}} ```