AI Chat

DeepSeek

Conversation, reasoning, and search entry points, with separate web, app, and developer API products.

Official identity and purpose checked · 2026-10-23

Visit official site ↗

Plans: 6
Official sources: 8
Hands-on tests: 0 not tested here
Data date: 2026-10-23

Purpose

Conversation, reasoning, and search entry points, with separate web, app, and developer API products.

Key features

Web conversation entry point
Reasoning and search options listed on the homepage
App downloads and a separate developer API platform

Suggested starting workflow

Distinguish the web assistant from API usage
Ask a bounded question and specify the output format
Check facts, citations, account access, region, and separate API billing

These are editorial starting suggestions based on the product purpose, not a workflow tested by this site.

Before you use it

Not tested hands-on here; feature descriptions come from official material.
Pricing, regions, languages, and commercial eligibility have not been verified per plan. A visible entry point does not establish account access.
Check facts, asset rights, and actual results before publishing or executing generated work.

Pricing & plans

Selected plan facts only, not a complete plan review or a task test. Check the source date and confirm current terms with the provider. Unverified conditions remain unknown.

Complete review Every listed plan of this tool has a complete review. Complete review: price, currency, billing period, platforms, languages, regions, watermark, commercial use and offline use each have a source or a stated reason they could not be confirmed. It is not a task test and does not guarantee current prices.

Flash API · off-peak usage Complete reviewUsage unit quote · Per million tokens · Cached input: $ 0.003 · Uncached input: $ 0.15 · Output: $ 0.6 · Currency code unknown · Actual charges unknownConditions and usage notes

Web access: Unknown
Chinese task support: Unknown
Mainland China availability: Unknown
Fully watermark-free: Unknown
Commercial rights: Unknown
API access: Verified supported ↗

Fields that could not be confirmed, and why

Price: Billed per million tokens; cost varies with input, output and cache hits, so there is no single price.
Web: This plan is API billing; the pricing page does not cover the web assistant, which is a separate entrance.
Desktop: The pricing page does not mention a desktop client.
Mobile: The pricing page does not mention a mobile app.
Chinese support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
English support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
Mainland China availability: Neither the pricing page nor the user agreement states regional availability or purchase eligibility.
Availability outside China: Neither the pricing page nor the user agreement states availability outside China.
Fully watermark-free: The pricing page does not mention output watermarks; agreement 5.3 describes AI-generated labelling inside the platform but does not define API output.
Commercial rights: Agreement 4.2 gives users rights in inputs and outputs for personal use, research, derivative products and training other models but never says 'commercial'; commercial rights are not inferred.
Offline use: The API is an online service and the pricing page does not mention offline use.

Limited to DeepSeek-V4.1-Flash-1017 during off-peak hours. Cached input, uncached input and output have distinct per-million-token quotes; the lowest input rate is not an end-to-end task cost.
The English source quotes the original $ symbol; the Chinese source separately quotes yuan. ISO currency codes and any conversion relation were not independently established, so currency remains unknown and the two quote tables are not mixed.
Peak hours are 01:00–04:00 and 06:00–10:00 UTC on Monday–Friday, excluding Chinese public holidays. Other times are off-peak; multi-turn or cross-window tasks need actual input/output accounting.
API billing is separate from web/app access. Spending granted balance first does not establish ongoing free usage. Model descriptions and vendor claims are not task tests by this site.
Search/Fetch services are separate from token fees. Server-side calls through the specified agents are currently unbilled; the official notice starts per-request billing at 00:00 Beijing time on November 1, 2026. This does not establish indefinite free service.

Source checked 2026-10-26 · Official sources ↗Official sources ↗Official sources ↗

Flash API · peak usage Complete reviewUsage unit quote · Per million tokens · Cached input: $ 0.006 · Uncached input: $ 0.3 · Output: $ 1.2 · Currency code unknown · Actual charges unknownConditions and usage notes

Web access: Unknown
Chinese task support: Unknown
Mainland China availability: Unknown
Fully watermark-free: Unknown
Commercial rights: Unknown
API access: Verified supported ↗

Fields that could not be confirmed, and why

Price: Billed per million tokens; cost varies with input, output and cache hits, so there is no single price.
Web: This plan is API billing; the pricing page does not cover the web assistant, which is a separate entrance.
Desktop: The pricing page does not mention a desktop client.
Mobile: The pricing page does not mention a mobile app.
Chinese support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
English support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
Mainland China availability: Neither the pricing page nor the user agreement states regional availability or purchase eligibility.
Availability outside China: Neither the pricing page nor the user agreement states availability outside China.
Fully watermark-free: The pricing page does not mention output watermarks; agreement 5.3 describes AI-generated labelling inside the platform but does not define API output.
Commercial rights: Agreement 4.2 gives users rights in inputs and outputs for personal use, research, derivative products and training other models but never says 'commercial'; commercial rights are not inferred.
Offline use: The API is an online service and the pricing page does not mention offline use.

Limited to DeepSeek-V4.1-Flash-1017 during peak hours. Cached input, uncached input and output have distinct per-million-token quotes; the lowest input rate is not an end-to-end task cost.
The English source quotes the original $ symbol; the Chinese source separately quotes yuan. ISO currency codes and any conversion relation were not independently established, so currency remains unknown and the two quote tables are not mixed.
Peak hours are 01:00–04:00 and 06:00–10:00 UTC on Monday–Friday, excluding Chinese public holidays. Other times are off-peak; multi-turn or cross-window tasks need actual input/output accounting.
API billing is separate from web/app access. Spending granted balance first does not establish ongoing free usage. Model descriptions and vendor claims are not task tests by this site.
Search/Fetch services are separate from token fees. Server-side calls through the specified agents are currently unbilled; the official notice starts per-request billing at 00:00 Beijing time on November 1, 2026. This does not establish indefinite free service.

Source checked 2026-10-26 · Official sources ↗Official sources ↗Official sources ↗

V4 Pro API · off-peak usage Complete reviewUsage unit quote · Per million tokens · Cached input: $ 0.022 · Uncached input: $ 0.66 · Output: $ 1.98 · Currency code unknown · Actual charges unknownConditions and usage notes

Web access: Unknown
Chinese task support: Unknown
Mainland China availability: Unknown
Fully watermark-free: Unknown
Commercial rights: Unknown
API access: Verified supported ↗

Fields that could not be confirmed, and why

Price: Billed per million tokens; cost varies with input, output and cache hits, so there is no single price.
Web: This plan is API billing; the pricing page does not cover the web assistant, which is a separate entrance.
Desktop: The pricing page does not mention a desktop client.
Mobile: The pricing page does not mention a mobile app.
Chinese support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
English support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
Mainland China availability: Neither the pricing page nor the user agreement states regional availability or purchase eligibility.
Availability outside China: Neither the pricing page nor the user agreement states availability outside China.
Fully watermark-free: The pricing page does not mention output watermarks; agreement 5.3 describes AI-generated labelling inside the platform but does not define API output.
Commercial rights: Agreement 4.2 gives users rights in inputs and outputs for personal use, research, derivative products and training other models but never says 'commercial'; commercial rights are not inferred.
Offline use: The API is an online service and the pricing page does not mention offline use.

Limited to DeepSeek-V4-Pro-0813 during off-peak hours. Cached input, uncached input and output have distinct per-million-token quotes; the lowest input rate is not an end-to-end task cost.
The English source quotes the original $ symbol; the Chinese source separately quotes yuan. ISO currency codes and any conversion relation were not independently established, so currency remains unknown and the two quote tables are not mixed.
Peak hours are 01:00–04:00 and 06:00–10:00 UTC on Monday–Friday, excluding Chinese public holidays. Other times are off-peak; multi-turn or cross-window tasks need actual input/output accounting.
API billing is separate from web/app access. Spending granted balance first does not establish ongoing free usage. Model descriptions and vendor claims are not task tests by this site.
Search/Fetch services are separate from token fees. Server-side calls through the specified agents are currently unbilled; the official notice starts per-request billing at 00:00 Beijing time on November 1, 2026. This does not establish indefinite free service.

Source checked 2026-10-26 · Official sources ↗Official sources ↗Official sources ↗

V4 Pro API · peak usage Complete reviewUsage unit quote · Per million tokens · Cached input: $ 0.044 · Uncached input: $ 1.32 · Output: $ 3.96 · Currency code unknown · Actual charges unknownConditions and usage notes

Web access: Unknown
Chinese task support: Unknown
Mainland China availability: Unknown
Fully watermark-free: Unknown
Commercial rights: Unknown
API access: Verified supported ↗

Fields that could not be confirmed, and why

Price: Billed per million tokens; cost varies with input, output and cache hits, so there is no single price.
Web: This plan is API billing; the pricing page does not cover the web assistant, which is a separate entrance.
Desktop: The pricing page does not mention a desktop client.
Mobile: The pricing page does not mention a mobile app.
Chinese support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
English support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
Mainland China availability: Neither the pricing page nor the user agreement states regional availability or purchase eligibility.
Availability outside China: Neither the pricing page nor the user agreement states availability outside China.
Fully watermark-free: The pricing page does not mention output watermarks; agreement 5.3 describes AI-generated labelling inside the platform but does not define API output.
Commercial rights: Agreement 4.2 gives users rights in inputs and outputs for personal use, research, derivative products and training other models but never says 'commercial'; commercial rights are not inferred.
Offline use: The API is an online service and the pricing page does not mention offline use.

Limited to DeepSeek-V4-Pro-0813 during peak hours. Cached input, uncached input and output have distinct per-million-token quotes; the lowest input rate is not an end-to-end task cost.
The English source quotes the original $ symbol; the Chinese source separately quotes yuan. ISO currency codes and any conversion relation were not independently established, so currency remains unknown and the two quote tables are not mixed.
Peak hours are 01:00–04:00 and 06:00–10:00 UTC on Monday–Friday, excluding Chinese public holidays. Other times are off-peak; multi-turn or cross-window tasks need actual input/output accounting.
API billing is separate from web/app access. Spending granted balance first does not establish ongoing free usage. Model descriptions and vendor claims are not task tests by this site.
Search/Fetch services are separate from token fees. Server-side calls through the specified agents are currently unbilled; the official notice starts per-request billing at 00:00 Beijing time on November 1, 2026. This does not establish indefinite free service.

Source checked 2026-10-26 · Official sources ↗Official sources ↗Official sources ↗

Search standalone API · successful requests Complete reviewUsage unit quote · Per thousand successful requests · Successful requests: $ 0.75 · Currency code unknown · Actual charges unknownConditions and usage notes

Web access: Unknown
Chinese task support: Unknown
Mainland China availability: Unknown
Fully watermark-free: Unknown
Commercial rights: Unknown
API access: Verified supported ↗

Fields that could not be confirmed, and why

Price: Billed per thousand successful requests; cost varies with call volume, so there is no single price.
Web: This plan is API billing; the pricing page does not cover the web assistant, which is a separate entrance.
Desktop: The pricing page does not mention a desktop client.
Mobile: The pricing page does not mention a mobile app.
Chinese support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
English support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
Mainland China availability: Neither the pricing page nor the user agreement states regional availability or purchase eligibility.
Availability outside China: Neither the pricing page nor the user agreement states availability outside China.
Fully watermark-free: The pricing page does not mention output watermarks; agreement 5.3 describes AI-generated labelling inside the platform but does not define API output.
Commercial rights: Agreement 4.2 gives users rights in inputs and outputs for personal use, research, derivative products and training other models but never says 'commercial'; commercial rights are not inferred.
Offline use: The API is an online service and the pricing page does not mention offline use.

This is the raw $ quote per thousand successful standalone API requests, not a token rate or a unified price for the web assistant or currently unbilled agent integration. The currency code is unverified.
Billing requires HTTP 200 with actual results: nonempty Search results or a Fetch page body. Failed, empty or timed-out requests are not billed; result count does not change the per-request price.
Server-side Search/Fetch calls through the specified agents are currently unbilled; the notice starts billing at 00:00 Beijing time on November 1, 2026. Future charging was not recorded as a current deduction or used to extend the unbilled period.
Request counts, model charges, regions, rights and actual outcomes remain unverified. No search/fetch API call or top-up was made.

Source checked 2026-10-26 · Official sources ↗Official sources ↗Official sources ↗Official sources ↗

Fetch standalone API · successful requests Complete reviewUsage unit quote · Per thousand successful requests · Successful requests: $ 0.75 · Currency code unknown · Actual charges unknownConditions and usage notes

Web access: Unknown
Chinese task support: Unknown
Mainland China availability: Unknown
Fully watermark-free: Unknown
Commercial rights: Unknown
API access: Verified supported ↗

Fields that could not be confirmed, and why

Price: Billed per thousand successful requests; cost varies with call volume, so there is no single price.
Web: This plan is API billing; the pricing page does not cover the web assistant, which is a separate entrance.
Desktop: The pricing page does not mention a desktop client.
Mobile: The pricing page does not mention a mobile app.
Chinese support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
English support: The docs exist in Chinese and English, which is documentation language, not a stated language coverage for the plan.
Mainland China availability: Neither the pricing page nor the user agreement states regional availability or purchase eligibility.
Availability outside China: Neither the pricing page nor the user agreement states availability outside China.
Fully watermark-free: The pricing page does not mention output watermarks; agreement 5.3 describes AI-generated labelling inside the platform but does not define API output.
Commercial rights: Agreement 4.2 gives users rights in inputs and outputs for personal use, research, derivative products and training other models but never says 'commercial'; commercial rights are not inferred.
Offline use: The API is an online service and the pricing page does not mention offline use.

This is the raw $ quote per thousand successful standalone API requests, not a token rate or a unified price for the web assistant or currently unbilled agent integration. The currency code is unverified.
Billing requires HTTP 200 with actual results: nonempty Search results or a Fetch page body. Failed, empty or timed-out requests are not billed; result count does not change the per-request price.
Server-side Search/Fetch calls through the specified agents are currently unbilled; the notice starts billing at 00:00 Beijing time on November 1, 2026. Future charging was not recorded as a current deduction or used to extend the unbilled period.
Request counts, model charges, regions, rights and actual outcomes remain unverified. No search/fetch API call or top-up was made.

Source checked 2026-10-26 · Official sources ↗Official sources ↗Official sources ↗Official sources ↗

Official sources

Sources with the same saved document, review date and validity period are shown together. Expand to see the plans that cite each source. Plan conditions are checked separately; public sources do not establish hands-on task results.

www.deepseek.com/