Devstral Medium API
model: devstral-medium-2507
This model is not available on the CallAI gateway yet; prices shown are the official reference. See the model directory for available models in the same family.
Legacy model retained for compatibility with older integrations
CallAI pricing
Crypto OKSpecs & upstream
Not callable yet
Devstral Medium is not live on the CallAI gateway yet. The code below will work once it is listed; calling it now returns model_not_available. Please don't top up for this model: USDT top-ups are non-refundable once credited (details). See the model directory for available models in the same family.
SDK quickstart
OpenAI-compatiblefrom 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-medium-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)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-medium-2507',
messages: [{ role: 'user', content: 'Hello!' }],
stream: true,
});
for await (const chunk of response) {
process.stdout.write(chunk.choices[0]?.delta?.content || '');
}FAQ — Devstral Medium
How do I call Devstral Medium (devstral-medium-2507)?
Use the official OpenAI SDK with base_url https://api.callaiapi.com/v1, your CallAI API key, and model "devstral-medium-2507".
What does Devstral Medium cost?
Pay-as-you-go: input $0.440/1M tokens, output $2.20/1M tokens. Fund with USDT — no credit card required.
Can I use Devstral Medium in Cursor or Windsurf?
Yes. Set OpenAI Base URL to https://api.callaiapi.com/v1 and add model "devstral-medium-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 Medium and other CallAI services.
Related models
View all pricing →Devstral Medium access facts
API model: devstral-medium-2507 · Vendor: Mistral · Pay-as-you-go
- API model name
- devstral-medium-2507
- Vendor
- Mistral
- Context window
- 128K
- CallAI price (in/out 1M)
- $0.440 / $2.20
- Upstream benchmark
- $0.400 / $2.00
- Protocol
- OpenAI SDK Compatible
- Base URL
- https://api.callaiapi.com/v1
- Best for
- Cursor, CLI agents, production apps