Devstral 2 2512
Mistral AIReleased Dec 9, 2025
Devstral 2 is a state-of-the-art open-source model by Mistral AI specializing in agentic coding. It is a 123B-parameter dense transformer model supporting a 256K context window. Devstral 2 supports exploring...
- Context window
- 262K tokens
- Input
- text, file
- Output
- text
- Tokenizer
- Mistral
- Released
- Dec 9, 2025
Pricing
Per 1M tokens. The provider price and our flat 3% fee are separate columns — what you pay is their sum.
| Per 1M tokens | Provider | + 3% fee | You pay |
|---|---|---|---|
| Input | $0.400 | $0.012 | $0.412 |
| Output | $2.00 | $0.060 | $2.06 |
| Cache read | $0.040 | $0.0012 | $0.041 |
Benchmarks
Artificial Analysis
- Intelligence index
- 19.2
- Coding index
- 31.3
- Agentic index
- 10.6
Supported parameters
- frequency_penalty
- max_tokens
- presence_penalty
- response_format
- seed
- stop
- structured_outputs
- temperature
- tool_choice
- tools
- top_p
Call it
OpenAI-compatible: point your SDK at api.openkey.ai/v1 and use model mistralai/devstral-2512.
curl https://api.openkey.ai/v1/chat/completions \
-H "Authorization: Bearer $OPENKEY_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "mistralai/devstral-2512",
"messages": [{"role": "user", "content": "Hello"}]
}'import os
from openai import OpenAI
client = OpenAI(
base_url="https://api.openkey.ai/v1",
api_key=os.environ["OPENKEY_API_KEY"],
)
completion = client.chat.completions.create(
model="mistralai/devstral-2512",
messages=[{"role": "user", "content": "Hello"}],
)
print(completion.choices[0].message.content)import OpenAI from "openai";
const client = new OpenAI({
baseURL: "https://api.openkey.ai/v1",
apiKey: process.env.OPENKEY_API_KEY,
});
const completion = await client.chat.completions.create({
model: "mistralai/devstral-2512",
messages: [{ role: "user", content: "Hello" }],
});
console.log(completion.choices[0].message.content);Questions
- How much does Devstral 2 2512 cost via API?
- Through OpenKey, Devstral 2 2512 costs $0.412 per 1M input tokens and $2.06 per 1M output tokens. That is the provider price ($0.400 / $2.00) plus a flat 3% fee — nothing else.
- What is Devstral 2 2512's context window?
- Devstral 2 2512 accepts up to 262K tokens of context.
- Is Devstral 2 2512 OpenAI-compatible?
- Yes. Send requests to OpenKey's /v1/chat/completions endpoint with model "mistralai/devstral-2512" using any OpenAI SDK — only the base URL and API key change.
- What inputs does Devstral 2 2512 support?
- Devstral 2 2512 accepts text, file input and produces text output.
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