Gemini 3.6 Flash free version: fFree model resources are limited and provided only for trial use; stability cannot be guaranteed, and you may encounter 429 errors during use. If you need to use it in a production environment and require unlimited concurrency with absolute stability, please choose the official version: gemini-3.6-flash
Gemini 3.6 Flash (free) vs GLM 5.2
Context lengths are 1,000,000 tokens on Gemini 3.6 Flash (free) and 1,000,000 tokens on GLM 5.2. Time to first token (TTFT) measured on AIHubMix is 5.2s on Gemini 3.6 Flash (free) and 1.1s on GLM 5.2. Measured output throughput is 124.0 tok/s on Gemini 3.6 Flash (free) and 37.9 tok/s on GLM 5.2.
GLM 5.2GLM-5.2 is Z.ai’s flagship model for the era of long-horizon tasks. With a truly usable 1M-token context window, it can handle project-level engineering context, execute long-running tasks more reliably, follow engineering standards more consistently, and complete the full development workflow from requirements to multi-platform deployment in a single task.
Pricing & Specifications
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
Promotional prices show the discounted rate; see each model page for promotion windows.
Activity Past 30 Days
Daily traffic served through AIHubMix — how demand for each model is trending.
Tokens / day
Requests / day
Performance Past 3 Days
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
Throughput (tok/s)
TTFT (s)
Uptime (%)
Cost calculator
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
FAQ
Which responds faster?
GLM 5.2: 1.1s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
How large is each context window?
Gemini 3.6 Flash (free) accepts 1,000,000 and GLM 5.2 accepts 1,000,000 input tokens. Maximum output per request is 64,000 tokens on Gemini 3.6 Flash (free) and 128,000 tokens on GLM 5.2.
Which one generates tokens faster?
Gemini 3.6 Flash (free) at 124.0 tok/s and GLM 5.2 at 37.9 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
What inputs and capabilities does each model support?
Gemini 3.6 Flash (free) accepts text, image, audio and video input and supports thinking, tool calling, function calling, structured outputs, web search and long context; GLM 5.2 accepts text input and supports thinking, tool calling, function calling and structured outputs.
Can I call Gemini 3.6 Flash (free) and GLM 5.2 with the same API key?
Yes. AIHubMix serves every model on this page behind one OpenAI-compatible endpoint, so switching between them is a one-line change to the model field — no second account, key or SDK.
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