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Gemini 3 Flash vs o4 mini
Comprehensive side-by-side LLM comparison
Gemini 3 Flash offers 708.2K more tokens in context window than o4 mini. Gemini 3 Flash is $5.00 cheaper per million tokens. Both models have their strengths depending on your specific coding needs.
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Google DeepMind
Gemini 3 Flash, released by Google in December 2025, is a large language model from the Gemini 3 family that delivers reasoning and coding performance with efficiency optimized for high-volume workloads. It features a 1M token context window, 64K maximum output tokens, and native support for text, image, audio, video, and PDF input. Gemini 3 Flash targets cost-sensitive agentic workflows, document processing, and production APIs requiring fast, capable multimodal responses.
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OpenAI
OpenAI o4 mini, released by OpenAI in April 2025, is a compact reasoning model from the o4 family that combines multimodal understanding with efficient chain-of-thought processing. It features a 200K token context window and native image understanding, with strong performance on mathematics and coding benchmarks relative to its inference cost. o4 mini targets cost-sensitive applications requiring both visual reasoning and mathematical accuracy.
8 months newer
o4 mini
OpenAI
2025-04-16
Gemini 3 Flash
Google DeepMind
2025-12-17
Pricing Comparison
Cost per million tokens (USD)
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Gemini 3 Flash
Input:$0.10
Output:$0.40($5.00 cheaper)
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o4 mini
Input:$1.10
Output:$4.40
Performance Metrics
Context window and performance specifications
Provider Availability & Performance
Available providers and their performance metrics
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Gemini 3 Flash
2 providers
Google Cloud Vertex AI
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o4 mini
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Gemini 3 Flash
Avg Score:0.0%
Providers:2
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o4 mini
Avg Score:0.0%
Providers:1