Compare Gemini 3.6 Flash from Google and GPT 5.5 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 3.6 Flash
GPT 5.5Gemini 3.6 Flash provides sustained frontier-level intelligence optimized for real-world tasks at a higher speed and lower cost. Designed for the agentic era, it excels at code generation, agentic execution, and spatial reasoning. This model is particularly effective for rapid agentic loops involving complex coding cycles and iterations.
GPT-5.5 raises the baseline for complex production workflows. It’s a strong fit for coding use cases, tool-heavy agents, grounded assistants, long-context retrieval, product-spec-to-plan workflows, and customer-facing workflows where execution quality and response polish are critical.
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.
Daily traffic served through AIHubMix — how demand for each model is trending.
Measured on real AIHubMix traffic, hourly buckets. Gaps mean no traffic in that hour.
LMArena ratings by capability (Bradley-Terry, commonly called Elo). Higher is better.
Source: LMArena (arena.ai) leaderboard, imported by AIHubMix. Models without published ratings are omitted per chart.
Estimate your monthly bill for the same workload on each model.
Monthly = daily × 30. Discounted rates applied where a promotion is active.
Gemini 3.6 Flash: $3.75/M output tokens; GPT 5.5: $30/M. Use the cost calculator above to estimate your own workload.
Gemini 3.6 Flash: 1518; GPT 5.5: 1509 (LMArena coding leaderboard).
Gemini 3.6 Flash: 2.5s time to first token measured on AIHubMix; see the live performance charts above for how each model behaves across the day.
Gemini 3.6 Flash accepts 1,048,576 and GPT 5.5 accepts 1,050,000 input tokens. Maximum output per request is 65,536 tokens on Gemini 3.6 Flash and 128,000 tokens on GPT 5.5.
Gemini 3.6 Flash at 133.0 tok/s and GPT 5.5 at 72.8 tok/s, measured as output throughput on AIHubMix — a separate metric from time to first token.
Gemini 3.6 Flash accepts text, image, video, audio and PDF input and supports thinking, tool calling, function calling, structured outputs, web search and long context; GPT 5.5 accepts text, image and PDF input and supports thinking, function calling, structured outputs, web search and tool calling.
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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