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Gemini 3.5 Flash vs GPT-4o-mini

Head to head on 11 shared benchmarks, with price, context window, and release dates.

Benchmark scores

54

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Model
Gemini 3.5 Flash

Google (Alphabet Inc.)

64.7%92.2%42.7%76.3%78.9%78.2%75.6%84.6%68.1%53.1%74.4%-------26.0%-1087elo-71.857.9%39.0%----64.9%88.2%82.0%--76.3%55.8%-76.6%--31.0%49.9%--40.9%-53.1%62.9%48.7%----95.3%64.3%
GPT-4o-mini

OpenAI

45.5%42.6%4.2%31.0%47.2%43.0%65.8%32.9%54.5%22.9%60.5%16.7%3.6%11.7%14.7%50.7%0.290.0%-0.0%-871elo---0.0%1.540.0%72.0%---23.4%78.9%--62.8%-64.8%78.0%--3.81100.0%-0.36---0.7883.3%54.5%22.5%-39.6%
2 / 2 models
AttributeGemini 3.5 Flash

Google (Alphabet Inc.)

GPT-4o-mini

OpenAI

DescriptionGemini 3.5 Flash is an AI model from Google (Alphabet Inc.).GPT-4o Mini is an AI model from OpenAI.
FamilyGeminiGPT
Params--
Open weightsclosedclosed
Licenseproprietaryproprietary
Released19 May 202618 Jul 2024
Context1,048,576128,000
Input $/1M$1.50$0.15
Output $/1M$9.00$0.60
Cache read $/1M$0.150$0.075
Cache write $/1M$0.083-
Speed0 tok/s0 tok/s
Latency0.00 s0.00 s
Modalitiestext, image, video, file, audiotext, image, file
Providers--
PublisherGoogle (Alphabet Inc.)OpenAI
Reported scores

FAQ

Is Gemini 3.5 Flash or GPT-4o-mini better?
Across the 11 benchmarks both models report on Sophon, Gemini 3.5 Flash leads on 11 of them. Which one is "better" depends on the benchmark - the table above shows every shared score.
How do Gemini 3.5 Flash and GPT-4o-mini compare on GPQA Diamond?
Gemini 3.5 Flash scores 92.2% and GPT-4o-mini scores 42.6% on GPQA Diamond.
Which is cheaper, Gemini 3.5 Flash or GPT-4o-mini?
GPT-4o-mini is cheaper at $0.60 per million output tokens against $9.00 for Gemini 3.5 Flash - about 15.0x.
When were Gemini 3.5 Flash and GPT-4o-mini released?
Gemini 3.5 Flash was released 19 May 2026 by Google (Alphabet Inc.). GPT-4o-mini was released 18 Jul 2024 by OpenAI.

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