Paraformer Realtime v2
Provider list prices: no platform markup, pay-as-you-go. These are official list prices. Logged-in customers may see effective prices including workspace discounts on /console/pricing.
Use Paraformer Realtime v2 in 30 seconds
OpenAI-compatible: swap the base_url, keep your SDK. POST /v1/audio/transcriptions
from openai import OpenAI
client = OpenAI(
base_url="https://synthorai.io/v1",
api_key="sk-syn-...",
)
resp = client.audio.transcriptions.create(
model="paraformer-realtime-v2",
file=open("meeting.mp3", "rb"),
language="en",
)
print(resp.text)import OpenAI from "openai";
import fs from "node:fs";
const client = new OpenAI({
baseURL: "https://synthorai.io/v1",
apiKey: "sk-syn-...",
});
const resp = await client.audio.transcriptions.create({
model: "paraformer-realtime-v2",
file: fs.createReadStream("meeting.mp3"),
});
console.log(resp.text);curl https://synthorai.io/v1/audio/transcriptions \
-H "Authorization: Bearer sk-syn-..." \
-F model="paraformer-realtime-v2" \
-F file=@meeting.mp3package main
import (
"context"
"fmt"
"os"
"github.com/openai/openai-go/v3"
"github.com/openai/openai-go/v3/option"
)
func main() {
client := openai.NewClient(
option.WithBaseURL("https://synthorai.io/v1"),
option.WithAPIKey("sk-syn-..."),
)
f, _ := os.Open("meeting.mp3")
resp, _ := client.Audio.Transcriptions.New(context.TODO(), openai.AudioTranscriptionNewParams{
Model: "paraformer-realtime-v2",
File: f,
})
fmt.Println(resp.Text)
}import com.openai.client.OpenAIClient;
import com.openai.client.okhttp.OpenAIOkHttpClient;
import com.openai.models.audio.transcriptions.*;
import java.nio.file.Paths;
OpenAIClient client = OpenAIOkHttpClient.builder()
.baseUrl("https://synthorai.io/v1")
.apiKey("sk-syn-...")
.build();
Transcription resp = client.audio().transcriptions().create(
TranscriptionCreateParams.builder()
.model("paraformer-realtime-v2")
.file(Paths.get("meeting.mp3"))
.build()).asTranscription();
System.out.println(resp.text());About Paraformer Realtime v2
Paraformer-Realtime-v2 is Alibaba Cloud's earlier-generation real-time speech recognition model, streaming audio in and transcripts out over a bidirectional connection.
- It recognizes Chinese Mandarin along with an unusually wide set of regional dialects (Cantonese, Wu, Hokkien, Sichuan, and more) plus English, Japanese, Korean, German, French, and Russian, and supports a language_hints parameter for guiding detection.
- Alibaba's docs now recommend Fun-ASR or Qwen-ASR for new projects, positioning this model for existing integrations.
- Synthorai continues to serve it via the OpenAI-compatible endpoint.
Specs & limits
| Modalities | audio → text |
| Features | realtime · streaming |
| Audio limits | Real-time WebSocket streaming, unlimited duration; hotwords + language_hints; word/sentence timestamps; zh dialects/EN/JA/KO/DE/FR/RU |
| Notable | Streaming-first Paraformer generation with hotword customization and multilingual coverage. |
FAQ
Is the Paraformer Realtime v2 API free to try?
Yes: new accounts get 10 trial calls and up to $1 in free credit, no card required. That's enough to try Paraformer Realtime v2 against your real workload before adding a payment method.
What is Paraformer Realtime v2 best at?
Streams audio in, transcripts out, plus unusually wide Chinese regional dialect coverage and language_hints parameter guides detection. See the About section for the full picture from the vendor's own release notes.
How much does Paraformer Realtime v2 cost?
Paraformer Realtime v2 costs $0.002 per minute of audio transcribed on Synthorai: pay-as-you-go, no platform markup, no subscription.
Which languages does Paraformer Realtime v2 support?
Paraformer Realtime v2 supports hotwords + language_hints. On Synthorai you call it through POST /v1/audio/transcriptions, the OpenAI transcription API shape.
How do I get access to Paraformer Realtime v2?
Point your existing OpenAI SDK at base_url="https://synthorai.io/v1", set model="paraformer-realtime-v2", and you're done. One API key covers every model on the gateway.