Gemini-2.5-flash-preview-05-20 is enabled by default for thinking; to disable it, request the name gemini-2.5-flash-preview-05-20-nothink.Only OpenAI-compatible format calls are supported; Gemini SDK is not supported. For the native Gemini SDK, please set the parameter budget=0 directly.
gemini-2.5-flash-preview-05-20-nothink vs GLM 5.2
Output tokens cost $2.50 per million on gemini-2.5-flash-preview-05-20-nothink and $3.94 per million on GLM 5.2. Input tokens cost $0.30 per million on gemini-2.5-flash-preview-05-20-nothink and $1.13 per million on GLM 5.2. Cached input tokens are billed at $0.03 per million on gemini-2.5-flash-preview-05-20-nothink and $0.28 per million on GLM 5.2. Context lengths are 1,048,576 tokens on gemini-2.5-flash-preview-05-20-nothink and 1,000,000 tokens on GLM 5.2. Time to first token (TTFT) measured on AIHubMix is 0.7s on gemini-2.5-flash-preview-05-20-nothink and 1.1s on GLM 5.2. Measured output throughput is 54.6 tok/s on gemini-2.5-flash-preview-05-20-nothink 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 is cheaper: gemini-2.5-flash-preview-05-20-nothink, GLM 5.2?
gemini-2.5-flash-preview-05-20-nothink: $2.50/M output tokens; GLM 5.2: $3.94/M. Use the cost calculator above to estimate your own workload.
Which responds faster?
gemini-2.5-flash-preview-05-20-nothink: 0.7s 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-2.5-flash-preview-05-20-nothink accepts 1,048,576 and GLM 5.2 accepts 1,000,000 input tokens. Maximum output per request is 65,536 tokens on gemini-2.5-flash-preview-05-20-nothink and 128,000 tokens on GLM 5.2.
Which one generates tokens faster?
gemini-2.5-flash-preview-05-20-nothink at 54.6 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-2.5-flash-preview-05-20-nothink accepts text, image, audio and video input and supports tool calling, function calling, structured outputs and long context; GLM 5.2 accepts text input and supports thinking, tool calling, function calling and structured outputs.
Can I call gemini-2.5-flash-preview-05-20-nothink 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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