2026 AI Showdown: ChatGPT vs Claude vs DeepSeek vs Gemini — Which One Is Worth the Effort to Access from China?

I'm Kai, a tech veteran.

Let me start with a hard truth: In 2026, AI models aren't a matter of "are they fun to play with" — they're a matter of "fall behind if you don't use them."

But for people in mainland China, the question was never "should I use AI." It's that the world's most powerful AI tools are simply inaccessible. ChatGPT is blocked. Claude is blocked. Gemini is half-broken. DeepSeek doesn't require a VPN but always feels like it's missing something.

So today's article skips the pure benchmark analysis — there's plenty of that online. Instead, I'm answering a more practical question: As a regular user in mainland China, which of these four AI models is actually worth the effort to access?

2026 Overview: The Four Major AI Models

Let's line up our four contenders:

After seeing this table, you probably have a rough idea — in terms of raw ability, the top three each have their strengths. In terms of accessibility, DeepSeek wins by a mile (because you just open it and go).

But it's not that simple. Let's break each one down.

ChatGPT (GPT-5): The All-Around King, Behind the Tallest Wall

Why It's Still Many People's First Choice

After GPT-5 launched in late 2025, it basically locked in its position as the "most versatile AI." It can do everything — write copy, build spreadsheets, write code, analyze data, generate images, search the web — and it's above average at all of it.

More importantly, there's the ecosystem. ChatGPT has the largest plugin store (GPTs Store), the most third-party integrations, and the most polished mobile app. Once you're used to it, you realize it's seeped into every corner of your workflow.

Best for: - Everyday conversation, brainstorming, copywriting - Web-connected searches for the latest information - Image generation (DALL-E integration) - The "Swiss Army knife" when you need to do a bit of everything

The Harsh Reality in China

ChatGPT has been blocked since the day it launched in 2022. In 2024, OpenAI went further and blocked Chinese IP addresses from API access. So:

• Web app: won't open, period
• Mobile app: not on the China App Store, requires a foreign Apple ID
• API: mainland IPs are rejected outright, requires an overseas server relay
• Registration: requires a foreign phone number (Chinese +86 numbers don't work)

VPN difficulty: moderate. Once your VPN connects, everything works fine. The biggest hurdle is registration — you need a foreign phone number, though SMS verification services are cheap and widely available now.

Kai's Take

If you're only going to use a VPN for one AI service, ChatGPT is a safe bet. It's not the absolute best at any single thing, but the overall experience is the most complete, learning resources are the most abundant, and troubleshooting help is the easiest to find.

Claude (Opus 4.7): The Coding God, But the Hardest to Access

Why Developers Are Obsessed with It

Claude Opus 4.7, released by Anthropic in early 2026, sent shockwaves through the programming community.

Its killer features:

• 1M token context: it can ingest an entire mid-sized codebase at once, then precisely tell you where the bugs are and how to refactor. GPT-5's 128K is left in the dust
• Widely considered the best at coding: consistently leads in mainstream code benchmarks like SWE-bench and HumanEval, with especially clear advantages in understanding complex logic and multi-file refactoring
• Unmatched at long-text analysis: feed it a 200-page contract, thesis, or financial report and it'll extract key points and find contradictions — other models can't match this
• More rigorous responses: less prone to making things up, and explicitly says "I'm not sure" when it isn't

Best for: - Coding, debugging, code review - Long document analysis, academic paper organization - Professional tasks requiring rigorous logic (legal, financial analysis) - Work where AI hallucinations are absolutely unacceptable

Why It's the "Hardest AI to Access" from China

Claude hits mainland China users with a double block:

1. GFW block: same as ChatGPT — claude.ai is inaccessible from mainland China
2. Anthropic's own restrictions: due to U.S. export control policies, Anthropic has additional access restrictions for the China region. Even with a VPN, if they detect you're a Chinese user, your account could be suspended

This means you don't just need a VPN — you also need: - A network environment that "doesn't look Chinese" (Japan or Singapore nodes preferred) - Registration with a foreign phone number or email - Payment ideally with a foreign credit card

VPN difficulty: high. You need a fairly stable VPN, and node quality matters — shared IPs from free VPNs are likely to trigger risk detection.

For a more detailed Claude access guide, check out: Claude Opus 4.7 — Full Guide for China Users.

Kai's Take

If you're a developer or frequently work with long documents, Claude is worth the extra effort. Its performance in these scenarios genuinely can't be matched by other models. But if you're just chatting casually, it's overkill.

Google Gemini (Ultra 2): The Ultimate Plugin for the Google Ecosystem

Where Its Real Advantage Lies

Honestly, looking at AI capability alone, Gemini Ultra 2 doesn't rank first. But Google has one weapon nobody else does: ecosystem integration.

• Gmail integration: "Organize all my unread emails this week by priority" — done right inside Gmail
• Google Docs / Sheets: call on AI directly within documents to edit drafts or build formulas
• Google Search: Gemini's web search quality is excellent (it is backed by the world's largest search engine, after all)
• 2M context: on paper, even longer than Claude (though in practice, Claude is slightly more accurate with very long texts)
• Best multimodal: currently the best at understanding images, video, and audio

Best for: - Heavy Google ecosystem users - Work requiring multimodal capabilities (image/video analysis) - Cross-language translation (Google's bread and butter — consistently solid)

The Situation in China: Half-Broken

Gemini's blocking situation is nuanced:

• gemini.google.com: blocked
• Google AI Studio: blocked
• Gemini API: partially accessible (you need to get around Google's service blocks, but the API itself doesn't block Chinese IPs the way OpenAI does)
• AI features inside Google services: Gemini features in Gmail, Docs, etc. work once you're past the firewall

VPN difficulty: moderate. Similar to ChatGPT — once through the firewall, it works. But since Google's entire service suite is blocked in mainland China, using Gemini means you're essentially "VPN-ing" the entire Google ecosystem, which creates a heavier constant bandwidth demand.

Kai's Take

If you're already a heavy Google ecosystem user (Gmail + Google Drive + Google Docs), Gemini's integration is genuinely convenient. But if you just want a standalone AI chat tool, its advantages are less obvious.

DeepSeek (V3): The No-VPN Hero

Why It Stunned the Entire Industry

DeepSeek shocked the world in early 2025 by training a top-tier model at absurdly low cost. By V3, its capabilities have firmly settled into the first tier.

DeepSeek's core advantages:

• No VPN required: deepseek.com opens directly in mainland China, zero barriers
• Completely free: unlimited web usage, API pricing at one-tenth of GPT-5
• Open-source: model weights are public, active technical community
• Strong Chinese capabilities: built by a Chinese team, so Chinese comprehension and generation quality are naturally high
• Impressive reasoning: the DeepSeek-R1 series performs exceptionally well in math and logical reasoning

But Its Shortcomings Are Equally Obvious

• Only 128K context: an order of magnitude less than Claude's 1M — struggles with long documents
• Sensitive topics restricted: responses on political, historical, and other sensitive content are filtered or dodged. This isn't a technical issue — it's a compliance requirement
• Underdeveloped ecosystem: nothing like ChatGPT's rich plugins and third-party integrations
• Slightly weaker English: not bad, but noticeably behind GPT-5 and Claude
• Stability issues: occasional queuing and throttling during peak hours — too many free users

Kai's Take

DeepSeek is currently the "safety net" for mainland China users — no VPN, no cost, and decent capability. If you don't want to deal with the hassle, just use it. But if you have higher demands (especially for coding and long-document processing), it's still worth the effort to access Claude or ChatGPT.

Other Domestic AI Worth Watching

Beyond DeepSeek, a few other mainland options are worth trying:

Kimi (Moonshot AI)

• Highlight: 2-million-character long context — feed it an entire book
• Best for: long reading, document summarization, academic assistance
• Limitation: reasoning and coding capabilities a step behind DeepSeek

GLM-5.1 (Zhipu AI)

• Highlight: solid multimodal capabilities, supports image and video understanding
• Best for: scenarios requiring image analysis and multimodal interaction
• Limitation: performance outside Chinese language is average

Tongyi Qianwen (Alibaba)

• Highlight: Alibaba ecosystem integration, stable enterprise-grade API service
• Best for: enterprise users, developers needing reliable APIs
• Limitation: creative writing falls short of ChatGPT

Common issue: All these domestic AIs have content censorship restrictions. On certain topics, their responses aren't as open as overseas models. If your use case involves sensitive content, you still need a VPN.

Recommendations by Use Case: So Which One Should You Use?

Enough analysis. Here are the answers:

Coding / Development → Claude Opus 4.7

No contest. 1M context plus best-in-class code comprehension makes this the ultimate weapon for developers. Worth the VPN effort and $20/month subscription.

Everyday Chat / General-Purpose Tool → ChatGPT GPT-5

Most balanced, best ecosystem, most learning resources. You won't regret accessing it via VPN.

Image/Video Analysis → Gemini Ultra 2

Google genuinely does multimodal best. If your work involves heavy image and video content processing, this is your pick.

Don't Want a VPN / Zero Budget → DeepSeek V3

Opens right up, free, great Chinese, strong reasoning. The "national AI" for mainland China users.

Academic Papers / Long Document Processing → Claude or Kimi

For extremely long documents (dozens of pages or more), Claude's 1M context is the most reliable. If you'd rather skip the VPN, Kimi's 2-million-character context also gets the job done.

The Mix-and-Match Strategy (What I Actually Do)

To be honest, I use a mix:

• Quick daily questions: DeepSeek (no VPN needed, instant)
• Coding: Claude (keep the VPN on, throw in an entire repo)
• Need the latest info: ChatGPT (best web search)
• When the VPN is down: Kimi as backup

You don't need to be loyal to one AI. Switching based on the situation is the smartest approach.

Quick VPN Guide

Since we're on the topic of "using a VPN to access AI," here's a quick rundown:

Essentials

Regardless of which VPN tool you use, accessing overseas AI services requires:

1. A stable VPN: capable of connecting to Japan, Singapore, or U.S. nodes
2. A foreign phone number or email: for account registration (required by ChatGPT, Claude, etc.)
3. Foreign payment method (optional): needed for paid subscriptions, not for free tiers

For a more complete guide, check out: How to Use ChatGPT / Claude from Mainland China.

Looking for VPN recommendations that still work in 2026? See: 2026 China VPN Recommendations — Tested.

What to Look for in a VPN

Using AI services is more demanding on a VPN than streaming YouTube:

• IP quality matters: shared IPs used by too many people easily trigger AI platform risk detection (especially Claude)
• Connection must be stable: disconnect mid-session and losing your code will make you want to throw your computer
• Speed must be sufficient: uploading large files (long documents, codebases) requires good upload bandwidth

(Quick plug time) If you don't feel like doing the research, Sunset Browser has built-in VPN functionality — open it and connect. Japan and Singapore nodes work great for ChatGPT and Claude. No setup, has a free tier, and I've been using it for half a year with nothing to complain about. Alright, plug over. Moving on —

FAQ

Q1: Can DeepSeek really replace ChatGPT?

Depends on your needs. For everyday chat, copywriting, and translation, DeepSeek is perfectly adequate — possibly even better for Chinese-language scenarios. But if you need ChatGPT's plugin ecosystem, web search, or DALL-E image generation, it can't fully substitute.

Q2: Is Claude really better than ChatGPT at coding?

In most coding benchmarks, yes. Especially for long-context scenarios (understanding an entire project) and complex refactoring, Claude has a clear edge. But ChatGPT is also excellent at coding — for everyday programming, both are more than enough. Pick whichever feels more natural to you.

Q3: Are there legal risks to using AI via a VPN?

Personal use of VPN tools for internet access hasn't seen large-scale enforcement. But I'd recommend keeping a low profile — don't publicly discuss it, and don't use it for illegal purposes. For a more detailed legal analysis, see: Is Using a VPN Illegal in China?.

Q4: Is an API proxy more convenient than a direct VPN?

For developers, yes. There are quite a few API proxy services in China that mirror OpenAI's API on domestic servers for direct access without a VPN. But be aware: quality varies wildly, data security is a concern, and since it's unofficial, it could go down at any time. For personal use, I'd still recommend going through a VPN to the official service.

Q5: Which AI actually has the best Chinese language ability?

DeepSeek and Claude are tied for first. DeepSeek has more Chinese training data and very precise comprehension. Claude excels particularly with long Chinese texts (handling very long Chinese documents without quality degradation). ChatGPT's Chinese is also good but occasionally has a "translation feel." Gemini's Chinese is the weakest of the four.

Q6: Is the free tier enough, or should I pay?

• Light users (a few questions a day): free tier is plenty
• Moderate users (frequent work use): pay up — the free tier's usage limits will frustrate you
• Heavy users (developers, researchers): paying is a necessary investment, don't skimp

Final Thoughts

The 2026 AI model battlefield has every player wielding their own secret weapon. ChatGPT is the most complete, Claude is the best at coding, Gemini pairs best with Google, and DeepSeek is the most accessible.

For users in mainland China, the most pragmatic strategy is: use DeepSeek as your main tool, and keep ChatGPT or Claude as a secondary weapon via VPN. That way, whether inside or outside the firewall, you always have good tools at hand.

The gap between people who use AI and those who don't will only keep growing. Don't let a wall stand between you and the world's best tools.

Have more questions? Feel free to reach out at Sunset Browser.