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Gemini 2.0 Flash vs GPT-4 Turbo

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

Quick Verdict

Gemini 2.0 Flash is cheaper than GPT-4 Turbo at $0.10/1M/1M vs $10.00/1M/1M input tokens — a 100.0x cost difference. Gemini 2.0 Flash scores higher on quality benchmarks (ELO 1330). Choose Gemini 2.0 Flash for cost-sensitive workloads; both are strong choices depending on your budget.

Detailed Comparison

MetricGemini 2.0 FlashGPT-4 Turbo
Input Price / 1M tokens$0.10/1MCheaper$10.00/1M
Output Price / 1M tokens$0.40/1MCheaper$30.00/1M
Context Window1MLarger128K
ELO Score (LMSYS)1330Smarter1260
Open Source
Free Tier
Release Date2025-012023-11

Which is cheaper: Gemini 2.0 Flash or GPT-4 Turbo?

Gemini 2.0 Flash is the cheaper option at $0.10/1M per 1M input tokens, compared to $10.00/1M for GPT-4 Turbo. That is a 100.0x cost difference on input tokens. Output pricing follows a similar pattern: Gemini 2.0 Flash charges $0.40/1M/1M vs $30.00/1M/1M for GPT-4 Turbo.

Which has better quality: Gemini 2.0 Flash or GPT-4 Turbo?

Based on LMSYS Chatbot Arena rankings, Gemini 2.0 Flash achieves a higher ELO score (1330 vs 1260), suggesting stronger performance on open-ended tasks. Gemini 2.0 Flash excels at latest-gen quality with flash-tier pricing. GPT-4 Turbo is known for strong general reasoning.

Which should you choose: Gemini 2.0 Flash or GPT-4 Turbo?

Choose Gemini 2.0 Flash if:
  • Latest-gen quality with Flash-tier pricing
  • Native tool use and agentic capabilities
  • 1M context window
Choose GPT-4 Turbo if:
  • Strong general reasoning
  • Good at following complex multi-step instructions
  • Reliable tool/function calling

Frequently Asked Questions

Which is cheaper: Gemini 2.0 Flash or GPT-4 Turbo?

Gemini 2.0 Flash is cheaper at $0.10/1M per 1M input tokens, making it 100.0x more affordable.

Which has better quality: Gemini 2.0 Flash or GPT-4 Turbo?

Gemini 2.0 Flash scores higher on the LMSYS Chatbot Arena with an ELO of 1330, suggesting better overall quality for most tasks.

Which has a larger context window: Gemini 2.0 Flash or GPT-4 Turbo?

Gemini 2.0 Flash has a larger context window at 1000K tokens.

Should I choose Gemini 2.0 Flash or GPT-4 Turbo?

Choose Gemini 2.0 Flash if cost is the priority. Choose Gemini 2.0 Flash if benchmark quality is most important. Consider your specific use case: Gemini 2.0 Flash is best for fast-response and function-calling, while GPT-4 Turbo excels at coding and function-calling.

Is Gemini 2.0 Flash or GPT-4 Turbo open source?

Gemini 2.0 Flash is proprietary. GPT-4 Turbo is proprietary.

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