DeepSeek

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Free AI Chat, Open-Source Models and a Low-Cost API

DeepSeek is an AI model maker with a free assistant on web and mobile, open-source models, a low-cost API and DeepSeek Harness, an open-source agent for coding, documents and data work.

Category:

AI Productivity

Use Cases:

AI Knowledge Assistants

Building AI-native applications

Pricing Model:

Freemium

Pricing Snapshot

Billing Frequence:

Usage-based

Paid Option From:

$0.15 per 1M input tokens (API)

Reviewed On:

November 5, 2026

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At a glance

Updated on AITL:

November 5, 2026

Pros:

Free AI chat on web, iOS and Android
Low API prices, from $0.15 per 1M input tokens off-peak
1M token context on both API models
Open-source model releases, with V4.1-Flash weights on Hugging Face
API works with OpenAI and Anthropic SDK formats
DeepSeek Harness is open source under the MIT license

Cons:

Personal data is collected, processed and stored in China
API prices double during peak hours on weekdays
Terms are governed by the laws of mainland China
DeepSeek Harness is in preview, and breaking changes are expected
Zapier and Albato list actions only, with no triggers

API Available

No public API available

Who It’s Best For

Founders

AI tools for founders to automate operations, accelerate growth, and make faster strategic decisions.

Developers

AI tools for developers to write code faster, automate workflows, and build AI-powered applications.

Product Teams

AI tools for product teams to analyze feedback, improve features, and accelerate product development.

Integrates With

Zapier

Zapier is a no-code automation platform that connects thousands of apps and enables users to automate workflows without writing code.

Make

Make is a visual automation platform that allows users to design complex workflows and integrate apps with advanced logic and data handling.

Albato

Albato is a no-code integration platform that enables users to connect apps and automate workflows quickly and efficiently.

About the tool

DeepSeek is an AI company from Hangzhou that builds its own large language models and releases many of them as open source. Its free assistant runs on the web, iOS and Android, with DeepThink and Search options for harder questions. The current API models are V4.1-Flash, which adds vision, and V4-Pro, both with a 1M token context. It suits anyone who wants a free AI assistant, along with developers, founders and product teams building on an affordable API. The API works with OpenAI and Anthropic SDK formats, and DeepSeek publishes guides for coding agents such as Claude Code, Codex and OpenCode. DeepSeek Harness, in public preview for Windows and macOS, edits local files, runs scheduled tasks and extends through plugins. Chat is free in the web and mobile apps, with no paid chat plan listed. The API is billed by usage from a prepaid or granted balance, and off-peak rates are half of peak rates. Harness is open source under the MIT license. Personal data is collected, processed and stored in China, which matters for some teams.

Key Use Cases

AI Knowledge Assistants

Discover how AI Knowledge Assistants streamline access to information across documents, meetings, and systems, boosting productivity for your team.

Building AI-native applications

Create applications built around AI capabilities, from copilots and assistants to intelligent workflows, dynamic interfaces, and AI-powered product experiences.

Data Analysis

Explore how data analysis tools help teams transform raw data into actionable insights through summaries, pattern detection, and anomaly spotting.

API & Developers Readiness

The DeepSeek API gives developers V4.1-Flash and V4-Pro models through OpenAI and Anthropic compatible formats, plus paid Search and Fetch tools. Usage is billed per token from a prepaid or granted balance, starting at $0.15 per 1M input tokens off-peak on deepseek-flash.

Automation integrations

Native connectors with Zapier, Make and Albato, checked by AITL.

Zapier

Zapier is a no-code automation platform that connects thousands of apps and enables users to automate workflows without writing code.

✓ Connected

Make

Make is a visual automation platform that allows users to design complex workflows and integrate apps with advanced logic and data handling.

✓ Connected

Albato

Albato is a no-code integration platform that enables users to connect apps and automate workflows quickly and efficiently.

✓ Connected

Official channels

Where this tool is active and shares its updates.

X (Twitter)GitHub

No official social channels listed for this tool yet. Use the website link above for the latest news.

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Pricing and plans

DeepSeek Web and app: free. Chat with the latest flagship model on the web, iOS and Android. No paid chat plan is listed.
DeepSeek Harness: open source. MIT-licensed agent in public preview for Windows and macOS, or through a web UI. No price is listed for the software.
API deepseek-flash: from $0.15 per 1M input tokens. Off-peak: $0.15 input, $0.003 cache hit and $0.60 output per 1M tokens. Peak: $0.30, $0.006 and $1.20. 1M token context, with vision support.
API deepseek-v4-pro: from $0.66 per 1M input tokens. Off-peak: $0.66 input, $0.022 cache hit and $1.98 output per 1M tokens. Peak: $1.32, $0.044 and $3.96. 1M token context.
API Search and Fetch: $0.75 per 1,000 requests. Each tool is billed per successful request.

Peak hours are 01:00-04:00 and 06:00-10:00 UTC on weekdays, excluding Chinese public holidays. Fees come from a topped-up or granted balance, with the granted balance used first. The pricing page lists no top-up minimum or refund policy.

November 5, 2026

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