Using Devstral Small 2 on Vercel AI Gateway

Implementation guide · Devstral · MistralAI

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Vercel AI Gateway exposes Devstral Small 2 through model ID mistral/devstral-small-2. Use the setup steps, sourced pricing, capabilities, and official provider links below to validate this route before deployment.

Last refreshed 2026-09-14. Next refresh: weekly.

Quick Start

  1. 1
    Create an account at Vercel AI Gateway and generate an API key.
  2. 2
    Use the Vercel AI Gateway SDK or REST API to call mistral/devstral-small-2 — see the documentation for request format.
  3. 3
    You'll be billed $0.10/1M input, $0.30/1M output tokens. See full pricing.
API PortalDocumentationPricingModel Card

Code Examples

Install
pip install openai
API key
AI_GATEWAY_API_KEY
Model ID
mistral/devstral-small-2

creator/model-name e.g. kwaipilot/kat-coder-pro-v2

import os
from openai import OpenAI

client = OpenAI(
    api_key=os.environ["AI_GATEWAY_API_KEY"],
    base_url="https://ai-gateway.vercel.sh/v1"
)
response = client.chat.completions.create(
    model="mistral/devstral-small-2",
    messages=[{"role": "user", "content": "Hello"}]
)
print(response.choices[0].message.content)

Pricing on Vercel AI Gateway

TypePrice (per 1M)
Input tokens$0.10
Output tokens$0.30

Capabilities

VisionMultimodalJSON / Tool useStructured OutputsCode Execution

About Devstral Small 2

Devstral Small 2 is Mistral AI's 24B open-weights coding agent model, released December 9, 2025 under Apache 2.0. It scores 68.0% on SWE-bench Verified and supports agentic software engineering tasks, multi-step reasoning, and tool use. Runs on a single RTX 4090 GPU or a Mac with 32GB RAM. Multimodal, with support for image inputs.

Full model details →

Model Specs

Released2025-12-09
Parameters24B
Context256k

Also available on(1)

Mistral AI Studio$0.10/1M
Compare all providers →

Provider

Vercel AI Gateway

Vercel