Free AI platform comparison

DeepSeek vs ChatGPT: Full Comparison 2026

For Chinese users on a budget: DeepSeek. For English content and rich integrations: ChatGPT. Both are free to try.

Quick decision

DeepSeek vs ChatGPT: Full Comparison 2026: pricing, free API, and limits

Quick answer: choose DeepSeek if its free tier, model family, or ecosystem fits your app better; choose ChatGPT (OpenAI) if it gives better free API credits, pricing, or access for your workflow. This comparison focuses on free tier, API pricing, limits, setup, and practical alternatives.

Free tierDeepSeek: 50 requests/day · ChatGPT (OpenAI): Limited requests/day

Free API$5 vs No

Best checkCredits, rate limits, setup friction

DecisionTest both if rank, latency, or access matters

DeepSeek detailsFree tier, API credits, limits and setup ChatGPT (OpenAI) detailsFree tier, API credits, limits and setup Free AI API directoryCompare all free credits and limits

👑

DeepSeek

95pts

2 wins

ChatGPT (OpenAI)

55pts

1 wins

🏆 Overall, DeepSeek offers more free value (2/6 categories)

📊 Side-by-Side

🧠 Model Details

DeepSeek4 models

DeepSeek-V4-Pro

📐 1000k⚡ Rate limited

Released April 2026, 1.6T param MoE (49B active), 1M context, thinking/non-thinking modes

DeepSeek-V4-Flash

📐 1000k⚡ Rate limited

Lightweight V4, 284B params (13B active), 1M context, excellent value

DeepSeek-V3

📐 64k⚡ 50 RPD

Previous flagship, still available

DeepSeek-R1

📐 64k⚡ 50 RPD

Reasoning model, strong at math/code

ChatGPT (OpenAI)6 models

GPT-5.5

📐 1000k⚡ Plus/Pro only

Released April 2026, smartest model, major upgrade for coding/research/analysis. API $5/M input, $30/M output

GPT-5.5-Cyber

📐 1000k⚡ Trusted Access / enterprise-limited

GPT-5.5 variant for trusted-access cybersecurity use cases, including security evaluation, vulnerability analysis, and defensive workflows; availability is gated through OpenAI trusted access.

GPT-5.5 Pro

📐 1050k⚡ Pro only

Deep reasoning variant for complex high-stakes tasks. API $30/M input, $180/M output

GPT-5.4

📐 128k⚡ Plus/Pro

Previous flagship, still powerful

GPT-4o mini

📐 128k⚡ Rate limited

Available to free users, fast

GPT-4o

📐 128k⚡ Very limited

Very limited for free users

🎯 Which should you choose?

Choose DeepSeek if…

you want 50 requests/day on the free tier, plus $5 for API tests.

Choose ChatGPT (OpenAI) if…

you want Limited requests/day on the free tier.

FAQ

Which is better, DeepSeek or ChatGPT (OpenAI)?

DeepSeek scores higher in this free-tier comparison because it wins more of the measured categories. Still, the best choice depends on your exact needs: free chat access, API credits, open-source models, or rate limits.

Does DeepSeek have a free tier?

Yes. DeepSeek lists 50 requests/day for free users.

Does ChatGPT (OpenAI) have a free tier?

Yes. ChatGPT (OpenAI) lists Limited requests/day for free users.

Which one is better for API experiments?

DeepSeek offers $5; ChatGPT (OpenAI) has no clearly listed free API credits. Choose the option with enough credits and rate limits for your prototype.

Source snapshot

Data source: yangmao.ai provider YAML tracker plus curated comparison notes. Official dashboards can change credits, limits, model availability, and pricing without notice; verify in the provider console before production.

yangmao.ai comparison slug: deepseek-vs-chatgpt
DeepSeek source: https://platform.deepseek.com
ChatGPT (OpenAI) source: https://chat.openai.com
Dataset freshness: DeepSeek: 2026-06-03 · ChatGPT (OpenAI): 2026-06-03
Decision data: Free tier, API credits, rate limits, model list, China access notes, and curated comparison dimensions from the yangmao.ai provider tracker.

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Use the provider guides for first-party testing, then route production traffic through one OpenAI-compatible key when multi-provider fallback, budget control, or China-access testing becomes painful.

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