Compare gemini-2.0-flash-thinking-exp-01-21 from Google and GPT 5.6 Luna from OpenAI on key metrics including benchmarks, price, context length, and other model features. Access both models and hundreds of others through the AIHubMix API.
gemini-2.0-flash-thinking-exp-01-21
GPT 5.6 LunaThe latest version, Gemini 2.0 Flash Thinking mode, is an experimental model designed to generate the "thought process" that the model goes through during its responses. Therefore, Gemini 2.0 Flash Thinking mode has stronger reasoning capabilities in its responses compared to the base Gemini 2.0 Flash model.
GPT-5.6 Luna is designed for cost-sensitive, high-volume workloads. It roughly corresponds to the nano model tier used in earlier GPT-5 families.
Prices are per million tokens. Time to First Token and throughput are rolling averages measured on AIHubMix.
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gemini-2.0-flash-thinking-exp-01-21: $0.304/M output tokens; GPT 5.6 Luna: $6/M. Use the cost calculator above to estimate your own workload.
gemini-2.0-flash-thinking-exp-01-21 accepts text, image, audio and video input and supports thinking and long context; GPT 5.6 Luna accepts text and image input and supports tool calling, thinking and structured outputs.
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