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OpenAI

GPT 4.1 Nano 2025 04 14

Name: GPT 4.1 Nano 2025 04 14
Brand: OpenAI
Price: 0.1 USD
Availability: InStock

Going away: Oct 23, 2026

GPT 4.1 Nano 2025 04 14 is a large language model by OpenAI with support for vision, function calling, prompt caching, and structured output. It supports a 1M token context window with up to 33K tokens of output. Priced at $0.1 per million input tokens and $0.4 per million output tokens, it is one of the most cost-efficient options in its class. Access GPT 4.1 Nano 2025 04 14 through Inworld Router with OpenAI SDK compatibility, built-in failover, and intelligent routing across providers.

→Function CallingPrompt CachingResponse SchemaVisionresponseFormatCapability

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": "openai/gpt-4.1-nano-2025-04-14-a",
          "model_id": "openai/gpt-4.1-nano-2025-04-14"
        },
        "weight": 33
      },
      {
        "variant": {
          "variant_id": "openai/gpt-4o-mini-b",
          "model_id": "openai/gpt-4o-mini"
        },
        "weight": 33
      },
      {
        "variant": {
          "variant_id": "openai/gpt-6-luna-c",
          "model_id": "openai/gpt-6-luna"
        },
        "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": "openai/gpt-4.1-nano-2025-04-14-a",
                        "model_id": "openai/gpt-4.1-nano-2025-04-14"
                    },
                    "weight": 33
                },
                {
                    "variant": {
                        "variant_id": "openai/gpt-4o-mini-b",
                        "model_id": "openai/gpt-4o-mini"
                    },
                    "weight": 33
                },
                {
                    "variant": {
                        "variant_id": "openai/gpt-6-luna-c",
                        "model_id": "openai/gpt-6-luna"
                    },
                    "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: "openai/gpt-4.1-nano-2025-04-14-a",
              model_id: "openai/gpt-4.1-nano-2025-04-14",
            },
            weight: 33,
          },
          {
            variant: {
              variant_id: "openai/gpt-4o-mini-b",
              model_id: "openai/gpt-4o-mini",
            },
            weight: 33,
          },
          {
            variant: {
              variant_id: "openai/gpt-6-luna-c",
              model_id: "openai/gpt-6-luna",
            },
            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!"}]
}'

GPT 4.1 Nano 2025 04 14 pricing and providers

Access GPT 4.1 Nano 2025 04 14 through OpenAI 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
OpenAI	$0.10	$0.40	$0.025	—	1M	32.8K	+2

Prices in USD per 1M tokens.

Going away: Oct 23, 2026

Other OpenAI models available through Inworld

Compare GPT 4.1 Nano 2025 04 14 with other OpenAI models available through Inworld Router or Realtime API.

							Capabilities
GPT 4o Mini	$0.15	$0.60	$0.075	—	128K	16.4K	+2
GPT 6 Luna	$0.10	$0.50	$0.01	$0.125	1.1M	128K	+4
GPT 5.6 Luna	$0.20	$1.20	$0.02	$0.25	1.1M	128K	+4
GPT 6.1 Sol	$2.00	$10.00	$0.10	$2.50	1.1M	128K	+4
GPT 6 Astra	$10.00	$50.00	$1.00	$12.50	1.1M	128K	+4
GPT 6 Luna:fast	$0.20	$1.00	$0.02	$0.25	1.1M	128K	+4
GPT 6 Sol	$2.00	$10.00	$0.20	$2.50	1.1M	128K	+4
GPT 5.6 Sol	$5.00	$30.00	$0.50	$6.25	1.1M	128K	+4
GPT 5.6 Terra	$2.00	$12.00	$0.20	$2.50	1.1M	128K	+4
GPT 5.5	$5.00	$30.00	$0.50	—	1.1M	128K	+4
GPT 5.4	$2.50	$15.00	$0.25	—	1.1M	128K	+4
GPT 5.4 Mini	$0.75	$4.50	$0.075	—	400K	128K	+4
GPT 5.4 Nano	$0.20	$1.25	$0.02	—	400K	128K	+4
GPT 5.2	$1.75	$14.00	$0.175	—	400K	128K	+4
GPT 5.1	$1.25	$10.00	$0.125	—	400K	128K	+4
GPT 5 Mini	$0.25	$2.00	$0.025	—	400K	128K	+3
GPT 5 Nano	$0.05	$0.40	$0.005	—	400K	128K	+3
GPT 4o	$2.50	$10.00	$1.25	—	128K	16.4K	+2
GPT 4o 2024 08 06	$2.50	$10.00	$1.25	—	128K	16.4K	+2
GPT 4.1	$2.00	$8.00	$0.50	—	1M	32.8K	+2
GPT 4.1 Mini	$0.40	$1.60	$0.10	—	1M	32.8K	+2
GPT 4.1 Nano	$0.10	$0.40	$0.025	—	1M	32.8K	+1
GPT 3.5 Turbo	$0.50	$1.50	—	—	16.4K	4.1K
GPT Image 2	$8.00	$30.00	$2.00	—	32.8K	32.8K
GPT Oss 120b	$0.037	$0.17	—	—	131.1K	131.1K	+2
GPT Oss 120b	$0.15	$0.60	$0.075	—	131.1K	32.8K	+3
GPT Oss 20b	$0.075	$0.30	$0.038	—	131.1K	32.8K	+3
GPT Oss Safeguard 20b	$0.075	$0.30	$0.038	—	131.1K	65.5K	+3