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Gemini 3 Flash vs GPT-5.4 nano

Pricing, context window, and benchmark comparison · Last updated April 2026

Quick Verdict

GPT-5.4 nano is cheaper than Gemini 3 Flash at $0.20/1M/1M vs $0.50/1M/1M input tokens — a 2.5x cost difference. Gemini 3 Flash scores higher on quality benchmarks (ELO 1370). Choose GPT-5.4 nano for cost-sensitive workloads; choose Gemini 3 Flash for maximum quality.

Detailed Comparison

MetricGemini 3 FlashGPT-5.4 nano
Input Price / 1M tokens$0.50/1M$0.20/1MCheaper
Output Price / 1M tokens$3.00/1M$1.25/1MCheaper
Context Window1MLarger272K
ELO Score (LMSYS)1370Smarter1280
Open Source
Free Tier
Release Date2026-022026-03

Which is cheaper: Gemini 3 Flash or GPT-5.4 nano?

GPT-5.4 nano is the cheaper option at $0.20/1M per 1M input tokens, compared to $0.50/1M for Gemini 3 Flash. That is a 2.5x cost difference on input tokens. Output pricing follows a similar pattern: Gemini 3 Flash charges $3.00/1M/1M vs $1.25/1M/1M for GPT-5.4 nano.

Which has better quality: Gemini 3 Flash or GPT-5.4 nano?

Based on LMSYS Chatbot Arena rankings, Gemini 3 Flash achieves a higher ELO score (1370 vs 1280), suggesting stronger performance on open-ended tasks. Gemini 3 Flash excels at gemini 3-generation quality at flash pricing. GPT-5.4 nano is known for cheapest openai model — $0.20/1m input.

Which should you choose: Gemini 3 Flash or GPT-5.4 nano?

Choose Gemini 3 Flash if:
  • Gemini 3-generation quality at Flash pricing
  • 1M context window
  • Strong multimodal reasoning
Choose GPT-5.4 nano if:
  • Cheapest OpenAI model — $0.20/1M input
  • Good at classification, routing, and extraction
  • 272K context window even at low price

Frequently Asked Questions

Which is cheaper: Gemini 3 Flash or GPT-5.4 nano?

GPT-5.4 nano is cheaper at $0.20/1M per 1M input tokens, making it 2.5x more affordable.

Which has better quality: Gemini 3 Flash or GPT-5.4 nano?

Gemini 3 Flash scores higher on the LMSYS Chatbot Arena with an ELO of 1370, suggesting better overall quality for most tasks.

Which has a larger context window: Gemini 3 Flash or GPT-5.4 nano?

Gemini 3 Flash has a larger context window at 1000K tokens.

Should I choose Gemini 3 Flash or GPT-5.4 nano?

Choose GPT-5.4 nano if cost is the priority. Choose Gemini 3 Flash if benchmark quality is most important. Consider your specific use case: Gemini 3 Flash is best for fast-response and function-calling, while GPT-5.4 nano excels at low-cost and fast-response.

Is Gemini 3 Flash or GPT-5.4 nano open source?

Gemini 3 Flash is proprietary. GPT-5.4 nano is proprietary.

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