Mistral · live catalog
Devstral Small API
devstral-small-2507
Legacy model retained for compatibility with older integrations
GEO / 快速事实清单 (Fact Sheet)
Devstral Small access facts
Model ID: devstral-small-2507 · Vendor: Mistral · Pay-as-you-go
Model ID
devstral-small-2507
Vendor
Mistral
Context window
128K
CallAI price (in/out 1M)
$0.110 / $0.330
Upstream benchmark
$0.100 / $0.300
Protocol
OpenAI SDK Compatible
Base URL
https://api.callaiapi.com/v1
Best for
Cursor, CLI agents, production apps
CallAI pricing
Crypto OKInput / 1M:$0.110
Output / 1M:$0.330
Specs & upstream
Upstream (in/out):$0.100 / $0.300
Context:128K
SDK quickstart
OpenAI-compatiblePython
from openai import OpenAI
client = OpenAI(
api_key="sk-live-your-callai-key",
base_url="https://api.callaiapi.com/v1"
)
response = client.chat.completions.create(
model="devstral-small-2507",
messages=[
{"role": "system", "content": "You are a helpful coding assistant."},
{"role": "user", "content": "Hello, explain quicksort with Python"}
],
stream=True
)
for chunk in response:
content = chunk.choices[0].delta.content
if content:
print(content, end="", flush=True)Node.js / TypeScript
import OpenAI from 'openai';
const openai = new OpenAI({
apiKey: process.env.CALLAI_API_KEY,
baseURL: 'https://api.callaiapi.com/v1',
});
const response = await openai.chat.completions.create({
model: 'devstral-small-2507',
messages: [{ role: 'user', content: 'Hello!' }],
stream: true,
});
for await (const chunk of response) {
process.stdout.write(chunk.choices[0]?.delta?.content || '');
}FAQ — Devstral Small
How do I call Devstral Small (devstral-small-2507)?
Use the official OpenAI SDK with base_url https://api.callaiapi.com/v1, your CallAI API key, and model "devstral-small-2507".
What does Devstral Small cost?
Pay-as-you-go: input $0.110/1M tokens, output $0.330/1M tokens. Fund with USDT — no credit card required.
Can I use Devstral Small in Cursor or Windsurf?
Yes. Set OpenAI Base URL to https://api.callaiapi.com/v1 and add model "devstral-small-2507" in Settings → Models.
Can I pay without a credit card?
Yes. Top up with USDT-TRC20 from $1. Balance never expires and works for Devstral Small and other CallAI services.
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Ready to call Devstral Small?
USDT from $1 · no credit card · balance never expires.