Deep Research Preview (Apr-21-2026) API
About
Build advanced reasoning agents with Deep Research Preview (Apr-21-2026), a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $2.00/1M input and $12.00/1M output tokens, native tool calling support. Access Deep Research Preview (Apr-21-2026) via the Google API with up to 66K output tokens.
Capabilities
Input Modalities
textimagevideoaudiopdf
Output Modalities
textimage
Reasoning
Yes
Structured Output
No
Tool Use
Yes
WeightsClosed
Temperature
Adjustable
Attachment
Supported
Limits
Context Window
131K
Tokens
Input Limit
131K
Tokens
Max Output
66K
Tokens
Pricing
Standard (per 1M tokens)
Input
$2.00
Output
$12.00
Caching (per 1M tokens)
Read
$0.20
Frequently Asked Questions
Deep Research Preview (Apr-21-2026) by Google costs $2.00 per 1M input tokens and $12.00 per 1M output tokens. Cached reads cost $0.20 per 1M tokens.
Model Details
ID
deep-research-preview-04-2026
Provider
GoogleFamily
gemini-pro
Release Date
Apr 21, 2026
Knowledge Cutoff
Jan 1, 2025
API Integration
NPM Package
@ai-sdk/google
Environment Variables
GOOGLE_API_KEY
GOOGLE_GENERATIVE_AI_API_KEY
GEMINI_API_KEY