Start chatting instantly with our ChatGPT free alternative. Our AI chatbot is a free AI assistant powered by GPT-5. You can ask questions, write emails, summarize PDFs, and create images easily. No login needed.
DeepSeek V4 is the April 2026 release from DeepSeek AI. It is a 284B parameter Mixture-of-Experts model with 13B active parameters, a native 1 million token context window, and a hybrid Compressed Sparse Attention architecture that cuts inference FLOPs to 10% of DeepSeek V3.2. Use it on this page for free, no login, no sign up, no credit card. This page runs DeepSeek V4 Flash, the production-tuned variant of DeepSeek 4.
DeepSeek V4 is built for code, math, and long-context agentic workflows. It scores 91.6 Pass@1 on LiveCodeBench and 86.2 EM on MMLU-Pro, which puts it in the same league as GPT-5 and Claude Sonnet 4.6 on technical tasks while costing a fraction per token. Three reasoning modes (Non-think, Think High, Think Max) let you trade speed for depth on hard problems. Best use cases:
Yes, you can use DeepSeek V4 without login on this page. The official chat.deepseek.com app and the DeepSeek API both require an account, a verified phone number, and (for the API) a top-up balance. Our free DeepSeek 4 chatbot routes your messages through a secure server so you can try the model instantly, no sign-up, no email, no credit card.
Learn more about DeepSeek on the official website
DeepSeek bills the V4 API per million tokens. The 75% promotional cut on V4-Pro was made permanent on May 31, 2026. On this page DeepSeek V4 is wired up free of charge with no token meter, no monthly cap, and no account.
| V4-Flash API | V4-Pro API | chat.deepseek.com | AIFreeForever DeepSeek 4 | |
|---|---|---|---|---|
| Input (cache hit) | $0.0028 / 1M | $0.003625 / 1M | Free | Free |
| Input (cache miss) | $0.14 / 1M | $0.435 / 1M | Free | Free |
| Output | $0.28 / 1M | $0.87 / 1M | Free | Free |
| Login | Required + top-up | Required + top-up | Required | None |
| Limit | RPM throttled | RPM throttled | Peak-hour queues | Unlimited basic chat |
Where does DeepSeek 4 actually win in 2026? Below is a head-to-head across the most common workloads, with the public API pricing for each.
| Model | Context | Coding (LiveCodeBench) | Reasoning (MMLU-Pro) | Output price / 1M |
|---|---|---|---|---|
| DeepSeek V4-Flash | 1,000,000 | 91.6 | 86.2 | $0.28 |
| DeepSeek V4-Pro | 1,000,000 | 93.4 | 88.1 | $0.87 |
| GPT-5 | 400,000 | 89.1 | 87.9 | $10.00 |
| Claude Sonnet 4.6 | 200,000 | 92.0 | 87.4 | $15.00 |
| Gemini 3 Pro | 2,000,000 | 88.7 | 86.5 | $10.00 |
| Grok 4.1 | 256,000 | 87.3 | 85.0 | $15.00 |
GPT-5 still leads on general world knowledge and structured tool use, but DeepSeek 4 matches or beats it on raw coding benchmarks at roughly 1/36th the output token price. If your workload is debugging, refactoring, or long-document reasoning, DeepSeek V4 produces near-identical answers for a fraction of the API spend.
Claude wins on prose quality, multi-turn nuance, and creative writing. DeepSeek 4 wins on code, math, and long context — Claude caps at 200K, DeepSeek V4 stretches to 1M. Output tokens cost $0.28 on DeepSeek V4-Flash versus $15.00 on Claude Sonnet 4.6, a 53x gap.
Gemini 3 Pro has the largest context window in this comparison (2M tokens) and is grounded in fresh Google data. DeepSeek 4 catches up on context where it matters most for code (the full repo fits in 1M) and is open source under the MIT license on Hugging Face, so you can self-host. Gemini is closed.
The chat.deepseek.com web app is free with an account, but file uploads, image generation, and chat history all sit behind sign-up walls. The DeepSeek API meters every token: V4-Flash at $0.14 input / $0.28 output per million, V4-Pro at $0.435 input / $0.87 output per million, with an 80% discount when the cache is hit. To use the API you need a verified account, a top-up balance (minimum $2), and the keys stay in your dashboard.
Our free DeepSeek 4 chatbot removes all of that. Open the page, type, get an answer. No meter, no top-up, no key.
Using free DeepSeek online is one click away with AIFreeForever's AI Chatbot: DeepSeek V4. Open the chat box, type your question, and the response streams back in seconds. You can switch between text, image, and video modes instantly, and jump to GPT-5, Claude, Gemini, or any other model from the top selector.
The official DeepSeek apps lock several features behind an account. You cannot upload long PDFs or spreadsheets, your chat history is tied to a single device, and the web version often queues new users during peak hours. Our free DeepSeek chat lifts most of those limits.
Our DeepSeek chatbot can be used without limit. Upload homework, summarize reports, debug code, generate logos, and switch between 14+ models without creating any account. Everything runs in your browser session.
DeepSeek's API pricing is one of the lowest on the market, but you still need a paid account, a verified phone number, and a credit balance to use it. Our tool aggregates DeepSeek V4 alongside GPT-5, Claude, and Gemini behind a single free chat so you can compare answers without paying or signing up.
Power users who need huge volumes can still go to the official DeepSeek platform. For everyday chat, coding help, math, and writing, this free interface is faster to open and lets you switch models in one click.
The DeepSeek V4 API needs a paid balance. This page is free.
No email, no phone, no password. Open the page and chat with DeepSeek V4.
DeepSeek V4 is text-only. Switch to Image mode here to generate pictures.
Drop a PDF, Word doc, or spreadsheet. DeepSeek V4 reads it inside its 1M token window.
Run the same prompt on DeepSeek V4 and GPT-5 from the model selector.
chat.deepseek.com queues users during Asia peak. This page does not.
DeepSeek V4 is a 284B Mixture-of-Experts model that activates only 13B parameters per token. You send a prompt, the router picks the right experts, and the answer streams back through a Compressed Sparse Attention layer that scales to 1M tokens of context.
DeepSeek 4's 1M context, three reasoning modes, and benchmark-leading code performance make it the right tool for a specific class of work. Lean into its strengths:
DeepSeek V4 rewards specific, technical prompts. Copy any of these into the chat to see what the model can do.
The DeepSeek V4 chat box is already open at the top of this page.
Ask DeepSeek V4 to debug code, solve math, summarise a PDF, or write text.
Drop a PDF, Word, Excel, or code file. DeepSeek V4 reads it in one pass.
The response streams back token-by-token from DeepSeek V4.
Yes. Prompts go directly to DeepSeek's V4 API over HTTPS. We do not log your conversations, do not store your files after the session, and DeepSeek's API terms state inputs are not used to train V4.
No. DeepSeek V4 scores 86.2 on MMLU-Pro and 91.6 on LiveCodeBench — strong but not perfect. It can hallucinate on recent events (knowledge cutoff April 2026) and niche facts. Always verify critical answers.
Yes. DeepSeek V4 is free on this page with no login, no token meter, and no credit card.
DeepSeek V4 is the April 2026 release from DeepSeek AI — a 284B Mixture-of-Experts model with 13B active parameters and a 1M token context window.
V4 Flash is the faster, cheaper variant ($0.14/$0.28 per 1M). V4 Pro scores a few points higher on benchmarks but costs $0.435/$0.87 per 1M. This page runs V4 Flash.
1,000,000 tokens — large enough to fit a full code repo or a 1,000-page document in a single prompt.
Yes. V4 has Non-think, Think High, and Think Max modes. This page defaults to Non-think for speed; thinking can be enabled via env config.
DeepSeek V4 matches GPT-5 on code (LiveCodeBench 91.6 vs 89.1) at roughly 1/36th the output token price. GPT-5 still leads on general world knowledge and tool use.
Yes. Upload a PDF in the chat box and DeepSeek V4 will read up to 1M tokens of it in one pass.
No. DeepSeek V4 is a text-only model. Switch to Image mode to use a separate image generator.
30+ languages including English, Chinese, Spanish, French, German, Japanese, and Russian.
Yes. Model weights are published on Hugging Face under the MIT license, so you can self-host V4 if you want.
Skip the DeepSeek login, top-up, and peak-hour queues. Use DeepSeek V4 free here, unlimited basic chat, no account.
