ModelInfo
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Gemini Deep Research Preview 04-2026

Agentic researcher for autonomous multi-step investigations that produces cited reports (Interactions API).

Googledeep-research-preview-04-20262026-04-21Report incorrect data

Specs

Context
1.05M
Max output
65.5K
Input price
—
Output price
—
Released
2026-04-21

Context

Context window
1.05M
Max input
1.05M
Max output
65.5K

Pricing

Not published

Modalities

Input
TextImageDocumentAudioVideo
Output
TextImage

API

API types
responses

Reasoning

Not published

Info

Status
Preview
Released
2026-04-21
Knowledge cutoff
—

Features

Confirmed
streaming
Source · official docsVerified 2026-10-11

How to call

1 provider

googlemodel = deep-research-preview-04-2026

responses
POSThttps://generativelanguage.googleapis.com/v1beta/interactions

JSON

Standard format
deep-research-preview-04-2026.json
{
  "id": "deep-research-preview-04-2026",
  "object": "model",
  "created": 1776729600,
  "owned_by": "google",
  "name": "Gemini Deep Research Preview 04-2026",
  "api": {
    "types": [
      "responses"
    ]
  },
  "limits": {
    "context": 1048576,
    "input": 1048576,
    "output": 65536
  },
  "modalities": {
    "input": [
      "text",
      "image",
      "document",
      "audio",
      "video"
    ],
    "output": [
      "text",
      "image"
    ]
  },
  "reasoning": {
    "supported": null,
    "efforts": []
  },
  "pricing": null,
  "features": [
    "streaming"
  ],
  "info": {
    "status": "preview",
    "release_date": "2026-04-21",
    "knowledge_cutoff": null,
    "description": "Agentic researcher for autonomous multi-step investigations that produces cited reports (Interactions API).",
    "docs": "https://ai.google.dev/gemini-api/docs/models/deep-research-preview-04-2026",
    "verified_at": "2026-10-11"
  }
}

Official sources

6