Does the ability match?
Successful Chat Completions does not mean that Responses, Anthropic Messages, tool calls, or multimodality are all available.
View compatibility matrixDon't start with the product introduction, just choose the next step according to your task: complete the first call, verify the existing API, migrate the project, or consult the enterprise usage and invoicing.
After registration, create an independent Key and confirm the model ID and price from the real-time catalog; then migrate the production business after completing the minimum request.
Register, create Key, query the model and send minimal requests.
Open 3-minute tutorial Existing APIDetect API gateway compatibility and routing risksCheck model declarations, tokens, dynamic questions, SSE and tool calls.
Run a free test Project migrationAccess OpenAI Compatible APIKeep the business parameters and replace the address, Key and model ID item by item.
View migration steps Business needsConsultation on high usage, recharge and invoicingPrepare monthly usage, model, concurrency and invoice requirements and contact us for confirmation.
Contact Enterprise Support⭐️ AIFast Credits are the unit used for platform balances and model pricing, not US dollars, fiat currencies or cryptocurrency tokens. Recharge to enjoy tiered discounts, here are only three commonly used tiers.
View real-time recharge prices| Balance received | Recharge discount |
|---|---|
| ⭐️ 100 Credits | 1% off (pay 99%) |
| ⭐️ 500 Credits | 1.5% off (pay 98.5%) |
| ⭐️ 1000 Credits | 2% off (pay 98%) |
The discount and final payment amount are subject to the real-time display on the recharge page.
Don't change the entire project at once. Confirm authentication, model ID, and protocol with a minimal, reproducible request, and then gradually add business capabilities.
View the production go-live checklistcurl https://www.aifast.club/v1/models \
-H "Authorization: Bearer $API_KEY"Expected result: HTTP 200, and returns the model ID callable by the current Key.First check whether the target model is currently open, the API type, and the billing caliber.
Use independent keys for different projects and environments to facilitate quotas, troubleshooting, and cancellation.
Request /v1/models, do not write the web page display name directly into the code.
Validate short text first, then test SSE, tool calls, image input, and error handling.
Successful Chat Completions does not mean that Responses, Anthropic Messages, tool calls, or multimodality are all available.
View compatibility matrixUse status codes, response models, tokens, business question sets, and multi-period samples to leave reviewable results.
Open comparison templateThe dynamic model, price and open status are subject to the console and real-time API, and page copywriting is not regarded as a permanent commitment.
View platform factsNo need to read the entire document first. Choose the scenario closest to your current project, check the functional boundaries first, and then enter model pricing, registration or enterprise support.
First confirm the custom Base URL entry, current version function boundaries, real model ID, and whether the OpenAI Key conflicts with the third-party Key.
The availability of the chat model does not mean the availability of the knowledge base. Embedding, Rerank, workflow nodes, and tool calls need to be configured and verified separately by model type.
Different capabilities may use independent endpoints, asynchronous tasks, and billing methods. First confirm the current model and price, and then establish a minimum test according to the input and output types.
Prepare main models, estimated monthly usage, peak concurrency, project isolation, bill verification and invoice requirements before contacting, making communication more efficient.
Public caliber:The current document uses platform descriptions such as 500+ model catalogs, 99% model availability operational data, domestic direct connection and enterprise invoicing. Model ID, price, maintenance status and specific API capabilities are subject to the console, price page and real requests; 99% does not equal the fixed request success rate or contract SLA. The network experience and invoicing process are subject to actual conditions and customer service confirmation.
Make the access boundaries and judgment basis clear before deciding on the next step.
First check the model and price to confirm that the required model is currently open; create an independent API Key after registration, query the real model ID through /v1/models, and then send a minimum text request.
The base conversion is ⭐️ 1 AIFast Credit = CNY ¥0.75. Current common top-up tiers receive 1% off at ⭐️ 100 Credits, 1.5% off at ⭐️ 500 Credits, and 2% off at ⭐️ 1000 Credits. Always confirm the final discount on the live payment page.
First replace only the Base URL and API Key, keep the model, prompt words and parameters unchanged to complete the minimum request; after successful verification, then test the streaming output, tool call, image input and timeout retry respectively.
Use the temporary limit Key to run model detection, and combine the response model, token, dynamic questions, SSE, tool calls and other sub-evidence judgments. The test is a risk screening, not a model manufacturer certification.
First sort out the estimated monthly usage, main models, concurrent requirements and invoicing information, and then contact customer service to confirm the current enterprise access, recharge and invoice plan; the final scope is subject to customer service and console information.
It cannot be universal by default. Text, image, video, Embedding and Rerank may use different endpoints, request fields or asynchronous task processes. You should first confirm the current model on the model price page, and then verify separately according to the corresponding documents.
After registering and creating an API Key, please query the model IDs available in the current account through the console or GET /v1/models. Model names in articles and pages are for illustration only and are not a substitute for live return values.
First check the model and price, then register and create a Key; if the enterprise needs to contact customer service first to confirm the current plan.