Free AI chat and API access to DeepSeek's frontier language models
DeepSeek is a large language model platform for users and developers seeking conversational AI and API-based model access.
AI Panel Score
6 AI reviews
Reviewed
AI Editor ApprovedApproved and published by our AI Editor-in-Chief after full panel analysis.Users interact with DeepSeek through a browser-based chat interface or a dedicated mobile app, both of which provide access to the latest flagship models. The experience mirrors other conversational AI tools: users type prompts and receive generated responses. Developers can access the same models programmatically through an open API platform, with documentation available to support integration into external applications.
The platform currently highlights DeepSeek-V4 as its lead model, emphasizing strong reasoning performance and expanded agent capabilities compared to prior versions. Past publicly released models include DeepSeek R1, V3, V2, Coder V2, Coder, VL (vision-language), Math, and DeepSeek LLM — indicating a range of specialized model variants beyond general-purpose chat.
DeepSeek targets both general consumers looking for a free AI chat tool and developers who want API access to capable language models. The web chat and app are free to use. API pricing is listed on the platform but specific tier costs were not confirmed from the homepage. It competes with OpenAI's ChatGPT, Anthropic's Claude, and Google's Gemini in the conversational AI and API model space.
The platform is accessible via web browser, iOS, and Android apps. An API documentation portal is available for developers, and the open platform supports model integration into third-party workflows. The service is operated under Chinese jurisdiction, with ICP and public security registration numbers listed.
A specialized AI model focused on coding tasks, available as part of DeepSeek's research offerings.
A research AI model available as part of DeepSeek's model lineup.
A vision-language AI model available as part of DeepSeek's model portfolio.
Flagship AI model with top-tier reasoning performance and significantly improved agent capabilities, available across web, app, and API.
Defined pricing structure for accessing DeepSeek models via the open API platform.
Web-based chat interface that allows users to converse with DeepSeek's latest flagship models at no cost.
API platform that enables developers to call DeepSeek's latest models with quick integration and smooth experience.
Mobile application providing access to DeepSeek's AI models on the go.
A dedicated channel for reporting and disclosing security vulnerabilities in DeepSeek's platform.
Official documentation provided to help developers integrate and use the DeepSeek API.
Dedicated page for monitoring the operational status of DeepSeek's services.
Fast and cost-effective model supporting both non-thinking and thinking modes, compatible with deepseek-chat and deepseek-reasoner aliases
Pro-tier model currently offered at 75% discount (until 2026-05-31), with higher capability and longer context
Sharpest API pricing in the category, but the jurisdiction risk is real.
“DeepSeek-V4 Pro at $0.44/1M tokens — 75% discounted until May 2026 — undercuts GPT-4 class models significantly. The capability story is credible. The board conversation isn't.”
Founded July 2023, funded by High-Flyer, a Chinese hedge fund. No public headcount, no funding round, no changelog. That's three gaps I'd want answered before any enterprise commitment. The free chat tier and $0.14/1M flash pricing make individual and dev adoption a no-brainer — but that's different from standardizing on it.
The model breadth is real: R1, Coder V2, VL, Math, now V4. They're not a one-model shop. At $0.87/1M output tokens on V4 Pro versus ChatGPT or Claude equivalents, the cost math is hard to ignore for high-volume API workloads. The 1M context window matches category leaders.
Reputation risk is the swing factor here. Chinese jurisdiction, hedge-fund ownership, no public security audit — that's a harder conversation with regulated industries or government-adjacent clients. Pilot it for internal tooling or dev experimentation. Don't route customer data through it until the compliance picture clears.
V4 Pro at $0.44/1M tokens during discount period materially undercuts Claude and ChatGPT equivalents, which matters for margin-sensitive AI product teams.
Chinese jurisdiction with ICP registration and no public third-party security audit makes board-level defense difficult in regulated or enterprise contexts.
Free web interface and open API with docs means a developer can be in production the same day — no trial gates, no sales cycle.
DeepSeek-V4's agent capabilities and 1M context window advance AI-native workflows, not just cost reduction on existing tasks.
Founded 2023, no public funding disclosures, no changelog, and hedge-fund ownership creates uncertain 36-month runway picture.
Cost-sensitive dev teams building internal tools who need frontier reasoning at the lowest available API price.
Your clients are in regulated industries or your data governance policy requires vendor jurisdiction clarity.
Best price-performance bet in the API tier, but the jurisdiction risk is load-bearing.
“DeepSeek-V4-Pro at $0.44/1M tokens — after the 75% discount, effectively $0.435 cache-miss input — undercuts OpenAI and Anthropic by a wide margin. The open-weights lineage and API surface are real. The Chinese jurisdiction isn't a footnote; it's an architectural constraint every engineering org needs to price explicitly.”
The API economics are genuinely disruptive. $0.87/1M output tokens on V4-Pro versus GPT-4o's ~$10/1M is not a rounding error — that's a build-vs-buy recalculation for any team running inference at volume. The 1M context window and 384K max output are competitive with Anthropic's Claude 3.5 Sonnet, and the cache-hit pricing at $0.003625/1M suggests someone on the infrastructure team understands real production query patterns.
The model portfolio depth — Coder V2, VL, R1, Math as named variants — signals a lab that's building domain-specific capability, not just scaling a single base model. That's the right architectural philosophy. No public changelog is a flag, though: I can't assess release velocity or deprecation patterns from public materials, and for a production dependency, that matters.
The hard constraint is jurisdiction. Hangzhou DeepSeek operates under Chinese data law, which creates compliance exposure for any regulated workload — healthcare, finance, defense-adjacent. If you're building a consumer app with no PII sensitivity, the risk profile is manageable. If your data governance team has EU or US federal requirements, this isn't a swap for OpenAI; it's a separate architectural lane entirely.
At $0.44/1M tokens V4-Pro undercuts every Tier-1 competitor on price while matching on context length, making it a credible default for cost-sensitive API buyers.
Open API with documented endpoints, JSON output, Tool Calls, and FIM Completion covers the core developer integration surface competently.
deepseek-chat and deepseek-reasoner aliases suggest OpenAI-compatible API shape, lowering migration friction from existing ChatGPT integrations.
Chinese jurisdiction and absent public changelog create dependency risk; the 75% discount expiring 2026-05-31 will reset cost assumptions for teams that built around current pricing.
Domain-specialized model variants (Coder V2, VL, Math, R1) plus a 1M-context flagship indicate genuine research depth, not commodity fine-tuning.
Cost-sensitive development teams building consumer or internal tools with no regulated-data requirements.
Your workload touches healthcare, finance, or any data residency requirement that excludes Chinese jurisdiction.
$0.44/1M tokens at 75% discount — the cheapest frontier API in the category right now.
“DeepSeek-V4-Pro runs $0.44/1M tokens through May 2026, against OpenAI GPT-4o at roughly $5/1M. TCO math is hard to beat at that delta.”
$0.44/1M tokens cache-miss input on V4-Pro. Normally $1.74 — 75% off until 2026-05-31. After that, budget $1.74. Model the cliff. 50 developers averaging 10M tokens/month: $0.44 × 10 × 50 = $220/month now, $870/month post-discount. Year-3 TCO lives at the higher number.
Pricing page publishes full token math without a sales call. Cache-hit input at $0.003625/1M is among the lowest in the category. Flash tier at $0.14/1M adds budget flexibility. No SSO surcharge, no seat tax — consumption-only billing is clean for procurement.
The real tradeoff: Chinese jurisdiction, High-Flyer ownership, no changelog visible in evidence. Compliance teams will flag it. Compare to Anthropic's Claude API at $3/1M for Haiku — DeepSeek wins on price, not on governance. Build your own data-residency risk model before signing anything.
No seat fees, no tiers gated behind sales — standard API key model reduces procurement friction significantly.
Consumption-based API billing means no auto-renewal trap; no term commitment visible in the evidence.
Full token pricing published — cache-hit, cache-miss, output — no sales call required per the pricing page.
Token-level billing makes cost-per-output measurable; ROI depends on internal benchmarking against ChatGPT or Claude outputs.
Post-discount cliff from $0.44 to $1.74/1M is a real budget event; model it at year 2, not year 3.
Cost-sensitive developers or startups benchmarking frontier API performance against OpenAI at a fraction of the price.
Your compliance team requires US or EU data residency, or your procurement policy excludes PRC-domiciled vendors.
Cheapest capable API in the category, but no changelog and Chinese jurisdiction matter
“DeepSeek-V4-Pro at $0.44/1M tokens (75% discounted until May 2026) undercuts GPT-4o significantly. The model lineup — R1, Coder V2, VL, Math — suggests real engineering investment across task-specific variants, not just a general-purpose chat wrapper.”
The pricing is the lead story. $0.87/1M output tokens at the discounted Pro rate, against OpenAI's ~$10-15 range for comparable tiers. Cache hit input at $0.003625/1M is aggressive. 1M context with 384K max output covers most real agentic workloads without chunking hacks. That's a legitimate workflow unlock for high-volume API users who've been throttling token usage to manage costs.
Coder V2 and the Math model suggest the team ships specialized variants rather than one-size-fits-all finetuning. That's the right instinct. The docs exist and the API platform is live — but no changelog is a red flag for anyone running this in production. You can't track breaking changes you can't see. No blog either, so model update cadence is opaque.
The Chinese jurisdiction isn't a theoretical concern for enterprise teams — it's a procurement blocker in regulated industries. The service status page exists, which is good. But for integration stability, the absence of versioned API docs and public changelog puts DeepSeek behind Anthropic's Claude or even Mistral on operational trust signals.
Free chat works, API is live, but no changelog means production integrations run on faith after any model update.
API docs are present and the pricing page is detailed enough to script cost estimates, but no versioning or migration guides are evident from public materials.
JSON output, Tool Calls, and FIM Completion in non-thinking mode covers the standard agentic stack; no changelog and no blog add discovery friction over time.
Eight distinct model variants (R1, V3, Coder V2, VL, Math, V4-Flash, V4-Pro) give power users meaningful routing options by task type.
OpenAI-compatible API aliases (deepseek-chat, deepseek-reasoner) mean drop-in substitution for existing LLM integrations without major refactoring.
Cost-sensitive developers building high-volume API integrations who can absorb jurisdictional and changelog risk.
Your team operates under data residency requirements or needs auditable model versioning for production stability.
Absurdly cheap API pricing that makes ChatGPT look embarrassed
“DeepSeek-V4 gives you capable reasoning models free on the web and dirt-cheap via API. The China jurisdiction question is real, and you shouldn't pretend it isn't.”
The pricing alone stops you mid-scroll. DeepSeek-V4 Pro at $0.44 per million tokens — and that's after a 75% discount, running until May 2026. Normal rate would be $1.74 per million on cache-miss input. Compare that to what OpenAI charges for comparable reasoning performance and you'll feel mildly annoyed at yourself for not looking sooner. Free chat on web and the app, functional API docs, a service status page — the basics are covered without drama.
The model lineup is genuinely broad: R1 for reasoning, Coder V2 for dev work, VL for vision tasks, DeepSeek Math. That's not a one-trick platform. The changelog is missing from the public site, which is a small tell — teams who ship fast usually want you to see it. Blog's absent too. The meta copy about 'unraveling the mystery of AGI' is doing more work than it should.
Here's the real tradeoff: operated under Chinese jurisdiction, funded by a hedge fund called High-Flyer, founded July 2023. For personal tinkering or cost-sensitive API work, fine. For enterprise data running through those endpoints, your legal team will have opinions. That's not a dismissal — it's just the honest variable in the math.
Web and mobile chat interface is clean, but no public changelog and a missing blog suggest the surface layer gets less attention than the models themselves.
Specialized model variants like DeepSeek Coder V2 and VL give power users somewhere to go, while free chat keeps the floor low for newcomers.
Native iOS and Android apps exist and provide model access, not just a mobile web wrapper, which puts it ahead of tools that treat mobile as an afterthought.
Free web chat with no signup friction plus available API docs means most users are running within minutes, which is the right call.
A dedicated service status page is a good sign; without changelog or public incident history it's hard to judge track record, but the infrastructure basics are visible.
Cost-sensitive developers and builders who want capable reasoning API access without the ChatGPT price tag.
Your organization has data residency requirements or legal constraints around Chinese-operated AI infrastructure.
Impressive model, jurisdiction flag you can't ignore
“DeepSeek-V4 at $0.44/1M tokens (pro tier, discounted) genuinely undercuts OpenAI and Anthropic on price. But the Chinese jurisdiction story isn't a footnote — it's the main event for any enterprise buyer.”
Three tells upfront. One: no blog, no changelog — shipping cadence is invisible from public materials. Two: the meta description reads 'unravel the mystery of AGI with curiosity' — the kind of line that tells you nothing about the product. Three: that 75% discount runs until May 2026, meaning real pricing hits later and the math changes.
What's real: the model lineup is serious. DeepSeek R1 got independent benchmarks that held up. Coder V2, VL, Math — actual specialization, not marketing segmentation. The $0.14/1M flash tier is aggressive. API-compatible with standard aliases, which keeps exits clean.
The flag nobody's avoiding: Chinese jurisdiction, High-Flyer hedge fund ownership, ICP registration. For personal use or cost-sensitive dev work, maybe irrelevant. For anything touching enterprise data or regulated industries, it's a hard blocker. That's not cynicism. That's compliance.
$0.44/1M pro tokens at 75% discount undercuts ChatGPT API pricing significantly; price-performance is the real differentiator, not feature uniqueness.
API aliases (deepseek-chat, deepseek-reasoner) follow standard patterns; switching to OpenAI or Anthropic Claude is a config change, not a migration project.
Funded by a single hedge fund, no public funding rounds, no visible changelog — concentration risk is high and geopolitical exposure adds a wildcard.
AGI mystery tagline is pure aspiration; no changelog, no concrete performance claims on the homepage — hard to verify what's real.
DeepSeek R1 and V3 earned credible third-party benchmark coverage; a real model lineage from July 2023 founding, not vaporware.
Cost-sensitive developers and researchers who need capable API access and aren't subject to data residency or geopolitical compliance requirements.
Your organization operates under data residency rules, government contracts, or any compliance framework that flags Chinese-jurisdiction AI providers.
Common questions answered by our AI research team
DeepSeek-V4 is free to use via the web interface, app, and API platform.
DeepSeek offers an open API platform for quick integration. API documentation is available, and the platform supports calling the latest DeepSeek models.
Yes, DeepSeek has a mobile app (DeepSeek App) available for download.
DeepSeek offers DeepSeek R1 as a reasoning model, alongside DeepSeek V3, DeepSeek Coder V2, DeepSeek VL, DeepSeek V2, DeepSeek Coder, DeepSeek Math, and DeepSeek LLM.
