Free AI platform comparison

Gemini vs Grok: Free Tier, API Pricing & Limits

Quick answer: choose Gemini when you need Google AI Studio free quota, multimodal tooling, and broad developer docs; choose Grok when you need xAI model access, social/context strengths, or Grok-specific API tests. Compare credits, API limits, pricing, and access before choosing.

Quick decision

Gemini vs Grok: Free Tier, API Pricing & Limits: pricing, free API, and limits

Quick answer: Gemini is Google AI Studio / Google API access; Grok is xAI model access. Choose Gemini for free quota and multimodal developer tooling; choose Grok for xAI-specific model tests and social/context workflows.

Best free quotaGemini / AI Studio

xAI model accessGrok

Check firstCredits, RPM, region access

Developer decisionGemini for prototypes, Grok for xAI tests

Gemini free tierGoogle AI Studio quota, models, and API setup Grok free tierxAI credits, pricing, and limits Free AI API directoryCompare free credits and limits

Google AI (Gemini)

70pts

2 wins

👑

Grok (xAI)

85pts

1 wins

🏆 Overall, Grok (xAI) offers more free value (1/6 categories)

📊 Side-by-Side

🧠 Model Details

Google AI (Gemini)3 models

Gemini 3.1 Pro

📐 2M⚡ 2 RPM (free)

Flagship model, 2M token context window

Gemini 3.1 Flash

📐 1M⚡ 15 RPM (free)

Fast model, 1M token context

Gemini 3.1 Flash Lite

📐 1M⚡ 30 RPM (free)

Lightest model, fastest speed

Grok (xAI)2 models

Grok 4.20

📐 128k⚡ Rate limited

xAI's latest flagship, reasoning + non-reasoning, lowest hallucination rate

Grok-3

📐 128k⚡ Rate limited

Free on X platform

🎯 Which should you choose?

Choose Google AI (Gemini) if…

you want Gemini free tier unlimited on the free tier, plus 免费 API 无需信用卡 for API tests.

Choose Grok (xAI) if…

you want Limited requests/day on the free tier, plus $25/月 for API tests.

FAQ

Which is better, Google AI (Gemini) or Grok (xAI)?

Grok (xAI) 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 Google AI (Gemini) have a free tier?

Yes. Google AI (Gemini) lists Gemini free tier unlimited for free users.

Does Grok (xAI) have a free tier?

Yes. Grok (xAI) lists Limited requests/day for free users.

Which one is better for API experiments?

Google AI (Gemini) offers 免费 API 无需信用卡; Grok (xAI) offers $25/月. 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: google-vs-grok
Google AI (Gemini) source: https://aistudio.google.com
Grok (xAI) source: https://grok.x.ai
Dataset freshness: Google AI (Gemini): 2026-06-15 · Grok (xAI): 2026-06-15
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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