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Weights & Biases

DeepSeek V4 Flash API

Weights & Biases
About

Build advanced reasoning agents with DeepSeek V4 Flash, a specialized AI model optimized for complex logic and chain-of-thought tasks. This model delivers cost-effective pricing at $0.14/1M input and $0.28/1M output tokens, native tool calling support, open weights architecture. Access DeepSeek V4 Flash via the Weights & Biases API with up to 1.0M output tokens.

Capabilities

Input Modalities

text

Output Modalities

text
Reasoning
Yes
Structured Output
Yes
Tool Use
Yes
WeightsOpen
Temperature
Adjustable
Attachment
Not Supported
Limits
Context Window
1.0M

Tokens

Input Limit
1.0M

Tokens

Max Output
1.0M

Tokens

Pricing

Standard (per 1M tokens)

Input
$0.14
Output
$0.28

Caching (per 1M tokens)

Read
$0.07
Frequently Asked Questions

DeepSeek V4 Flash by Weights & Biases costs $0.14 per 1M input tokens and $0.28 per 1M output tokens. Cached reads cost $0.07 per 1M tokens.

Model Details
ID
deepseek-ai/DeepSeek-V4-Flash
Provider
Weights & Biases
Family
deepseek
Release Date
Apr 24, 2026
Knowledge Cutoff
May 1, 2025
API Integration
NPM Package
@ai-sdk/openai-compatible
Environment Variables
WANDB_API_KEY
API Base URL
https://api.inference.wandb.ai/v1
Documentation