Gemini 4 Argon API

google/gemini-4-argon
Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. It accepts text and image input, returns text, and offers a 1,048,576-token context window with up to 65,536 tokens per response.
Context
1M tokens
Input
$2.6 / 1M tokens
Output
$13 / 1M tokens
Released
Oct 13, 2026

Overview

Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. It is available on AI/ML API through the chat completions endpoint as google/gemini-4-argon.

Specifications

  • Developer: Google
  • Model ID: google/gemini-4-argon
  • Context window: 1,048,576 tokens
  • Max output: 65,536 tokens
  • Input: text, image
  • Output: text
  • Capabilities: reasoning, parallel tool calling, vision, structured output, streaming
  • Released: October 13, 2026

API Pricing

  • Input: $2.60 / 1M tokens
  • Cached input: $0.13 / 1M tokens
  • Output: $13.00 / 1M tokens

What Google reports

Google reports Argon ahead of competing models from OpenAI and Anthropic on several benchmarks, including long-video understanding. These are vendor-reported results and have not been independently reproduced.

Sources: blog.google, venturebeat.com

Use cases

Google describes Argon as built for agentic software engineering, including analysing fleet-wide profiling telemetry and migrating C/C++ codebases with agents running over long horizons.

It is also positioned for deep mathematical and scientific problem solving, and for autonomous multi-step agents that keep working across many sequential tool calls.

The 1,048,576-token context window suits long-document and multi-file analysis, and image input allows multimodal document and screenshot understanding.

How to use Gemini 4 Argon API

Install any OpenAI-compatible SDK, point it at api.aimlapi.com/v1, and set the model to google/gemini-4-argon.
import requests

r = requests.post(
    "https://api.aimlapi.com/v1/chat/completions",
    headers={"Authorization": "Bearer " + AIMLAPI_KEY},
    json={
      "model": "google/gemini-4-argon",
      "messages": [
        {
          "role": "user",
          "content": "Hello!"
        }
      ]
    },
)
print(r.json())
const r = await fetch("https://api.aimlapi.com/v1/chat/completions", {
  method: "POST",
  headers: {
    Authorization: `Bearer ${process.env.AIMLAPI_KEY}`,
    "Content-Type": "application/json",
  },
  body: JSON.stringify({
    "model": "google/gemini-4-argon",
    "messages": [
      {
        "role": "user",
        "content": "Hello!"
      }
    ]
  }),
});
console.log(await r.json());
curl -X POST https://api.aimlapi.com/v1/chat/completions \
  -H "Authorization: Bearer $AIMLAPI_KEY" \
  -H "Content-Type: application/json" \
  -d '{"model":"google/gemini-4-argon","messages":[{"role":"user","content":"Hello!"}]}'

OpenAI-compatible — swap the base URL and it works with your existing SDK.

Gemini 4 Argon API Pricing

TypePrice
Input
$2.6 / 1M tokens
Output
$13 / 1M tokens
Cached input
$0.13 / 1M tokens

Gemini 4 Argon Benchmarks

BenchmarkScoreWhat it measuresSourceRetrieved
Intelligence
52.6
Composite score across standardised reasoning, knowledge and problem-solving evaluations, measured independently by Artificial AnalysisSourceSeptember 30, 2026
DeepSWE
77.9%
Agentic software engineering: resolving real repository tasks end to endSourceOctober 7, 2026
Terminal-Bench 4
57.4%
Autonomous shell and terminal task completion, fourth releaseSourceOctober 7, 2026
AutomationBench
51.3%
Completion of routine automation workflowsSourceOctober 7, 2026

Figures reported by Google; not independently reproduced.

Frequently asked questions

Yes. Gemini 4 Argon is live on AI/ML API and callable with the model id google/gemini-4-argon on the chat completions endpoint, using the same API key as every other model on the platform.

Up to 65,536 tokens per response, within a 1,048,576-token context window.

On AI/ML API, Gemini 4 Argon is priced at $2.60 per 1M input tokens and $13.00 per 1M output tokens, with cached input at $0.13 per 1M tokens.

Gemini 4 Argon has a 1,048,576-token context window and can return up to 65,536 tokens in one response.

Google positions Argon for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. It cites agents analysing fleet-wide profiling telemetry and migrating C/C++ codebases over long horizons. The 1M-token context window also suits long-document and multi-file analysis.

Create an AI/ML API account, generate a key in Key Management and call google/gemini-4-argon on https://api.aimlapi.com/v1/chat/completions. No separate Google access is needed.

No. Google reports Argon ahead of competing models from OpenAI and Anthropic on several benchmarks, including long-video understanding. Those results are vendor-reported and have not been independently reproduced.

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