Mistral

Devstral Medium 2507

Name: Devstral Medium 2507
Brand: Mistral
Price: 0.4 USD
Availability: InStock

Devstral Medium 2507 is a large language model by Mistral with support for function calling and structured output. It supports a 128K token context window with up to 128K tokens of output. Priced at $0.4 per million input tokens and $2 per million output tokens, it is one of the most cost-efficient options in its class. Access Devstral Medium 2507 through Inworld Router with OpenAI SDK compatibility, built-in failover, and intelligent routing across providers.

→Function CallingResponse Schema

Use This Model

Step 1 — Create Router

curl --location 'https://api.inworld.ai/router/v1/routers' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
  "name": "compare-frontier-models",
  "defaultRoute": {
    "route_id": "default",
    "variants": [
      {
        "variant": {
          "variant_id": "mistral/devstral-medium-2507-a",
          "model_id": "mistral/devstral-medium-2507"
        },
        "weight": 33
      },
      {
        "variant": {
          "variant_id": "mistral/codestral-2508-b",
          "model_id": "mistral/codestral-2508"
        },
        "weight": 33
      },
      {
        "variant": {
          "variant_id": "mistral/codestral-latest-c",
          "model_id": "mistral/codestral-latest"
        },
        "weight": 34
      }
    ]
  }
}'

import requests

response = requests.post(
    "https://api.inworld.ai/router/v1/routers",
    headers={
        "Authorization": "Basic <your-api-key>",
        "Content-Type": "application/json",
    },
    json={
        "name": "compare-frontier-models",
        "defaultRoute": {
            "route_id": "default",
            "variants": [
                {
                    "variant": {
                        "variant_id": "mistral/devstral-medium-2507-a",
                        "model_id": "mistral/devstral-medium-2507"
                    },
                    "weight": 33
                },
                {
                    "variant": {
                        "variant_id": "mistral/codestral-2508-b",
                        "model_id": "mistral/codestral-2508"
                    },
                    "weight": 33
                },
                {
                    "variant": {
                        "variant_id": "mistral/codestral-latest-c",
                        "model_id": "mistral/codestral-latest"
                    },
                    "weight": 34
                }
            ]
        }
    },
)
print(response.json())

const response = await fetch(
  "https://api.inworld.ai/router/v1/routers",
  {
    method: "POST",
    headers: {
      Authorization: "Basic <your-api-key>",
      "Content-Type": "application/json",
    },
    body: JSON.stringify({
      name: "compare-frontier-models",
      defaultRoute: {
        route_id: "default",
        variants: [
          {
            variant: {
              variant_id: "mistral/devstral-medium-2507-a",
              model_id: "mistral/devstral-medium-2507",
            },
            weight: 33,
          },
          {
            variant: {
              variant_id: "mistral/codestral-2508-b",
              model_id: "mistral/codestral-2508",
            },
            weight: 33,
          },
          {
            variant: {
              variant_id: "mistral/codestral-latest-c",
              model_id: "mistral/codestral-latest",
            },
            weight: 34,
          },
        ],
      },
    }),
  }
);
const data = await response.json();
console.log(data);

Step 2 — Chat Completion

curl --location 'https://api.inworld.ai/v1/chat/completions' \
--header 'Authorization: Basic <your-api-key>' \
--header 'Content-Type: application/json' \
--data '{
  "model": "inworld/compare-frontier-models",
  "messages": [{"role": "user", "content": "Hello!"}]
}'

Devstral Medium 2507 pricing and providers

Access Devstral Medium 2507 through Mistral via Inworld Router or Realtime API. By using the AI provider(s) below you acknowledge you reviewed and agree to their terms listed in the Legal section under the AI provider's name.

					Capabilities	Input modalities	Output modalities
Mistral	128K	128K	$0.40	$2.00

Other Mistral models available through Inworld

Compare Devstral Medium 2507 with other Mistral models available through Inworld Router or Realtime API.

					Capabilities
Codestral 2508	256K	256K	$0.30	$0.90
Codestral Latest	32K	8.2K	$1.00	$3.00
Devstral 2	256K	256K	$0.40	$2.00
Devstral Medium Latest	256K	256K	$0.40	$2.00
Devstral Small	128K	128K	$0.10	$0.30
Labs Mistral Small Creative	—	—	$0.10	$0.30	—
Magistral Medium 2509	40K	40K	$2.00	$5.00	+1
Magistral Medium Latest	40K	40K	$2.00	$5.00	+1
Magistral Small Latest	40K	40K	$0.50	$1.50	+1
Ministral 3 14b	—	—	$0.20	$0.20	—
Ministral 3 3b	—	—	$0.10	$0.10	—
Ministral 3 8b	—	—	$0.15	$0.15	—
Mistral Large 2	128K	128K	$2.00	$6.00
Mistral Large 3	262.1K	262.1K	$0.50	$1.50
Mistral Medium	32K	8.2K	$2.70	$8.10
Mistral Medium 2505	131.1K	8.2K	$0.40	$2.00
Mistral Medium 2508	—	—	$0.40	$2.00	—
Mistral Medium Latest	131.1K	131.1K	$0.40	$2.00
Mistral Small 2603	—	—	$0.15	$0.60	—
Mistral Small 3.2	131.1K	131.1K	$0.06	$0.18
Mistralai/Mistral Nemo Instruct 2407	131.1K	131.1K	$0.02	$0.04
Mistralai/Mistral Small 24B Instruct 2501	32.8K	32.8K	$0.05	$0.08
Mistralai/Mistral Small 3.2 24B Instruct 2506	128K	128K	$0.075	$0.20
Mistralai/Mixtral 8x7B Instruct V0.1	32.8K	32.8K	$0.54	$0.54
Open Mistral Nemo	128K	128K	$0.30	$0.30
Open Mistral Nemo 2407	128K	128K	$0.30	$0.30
Pixtral Large 2411	128K	128K	$2.00	$6.00