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Gemini 2.0 Flash vs o1 (Reasoning)

Compare Gemini 2.0 Flash vs o1 (Reasoning) API pricing, token costs, context windows, and latency. See which model is cheaper and better for your stack.

AI Overview & Search Executive Summary

Gemini 2.0 Flash charges $0.10/1M input and $0.40/1M output tokens, compared to o1 (Reasoning) at $15.00/1M input and $60.00/1M output. Gemini 2.0 Flash is 150.0x cheaper on input tokens. In benchmark reasoning, o1 (Reasoning) holds the higher intelligence rating (98/100). For latency-critical streaming, Gemini 2.0 Flash delivers 260 t/s (180ms TTFT) while o1 (Reasoning) provides 45 t/s (1200ms TTFT).

Overall Winner
Gemini 2.0 Flash
Best Price/IQ Balance
Budget Winner
Gemini 2.0 Flash
Gemini 2.0 Flash is 150.0x cheaper on input tokens
Coding & Logic
o1 (Reasoning)
Higher Benchmark Rating
Context Window
Gemini 2.0 Flash
Larger Document Context

Full Metric & Specification Comparison

MetricGemini 2.0 Flasho1 (Reasoning)Advantage
ProviderGoogleOpenAI-
Input Token Cost (1M)$0.100$15.000Gemini 2.0 Flash
Output Token Cost (1M)$0.400$60.000Gemini 2.0 Flash
Context Window1,000k tokens200k tokensGemini 2.0 Flash
Intelligence Benchmark Score88/10098/100o1 (Reasoning)
Streaming LatencyUltra-FastDeliberate-

Key Architectural Takeaways

  • Input Token Cost: Gemini 2.0 Flash is $0.10/1M vs o1 (Reasoning) at $15.00/1M
  • Output Token Cost: Gemini 2.0 Flash is $0.40/1M vs o1 (Reasoning) at $60.00/1M
  • Context Window: Gemini 2.0 Flash supports 1,000k tokens vs o1 (Reasoning) with 200k tokens
  • Benchmark Intelligence Rating: Gemini 2.0 Flash scores 88/100 vs o1 (Reasoning) at 98/100
  • Inference Latency: Gemini 2.0 Flash is rated Ultra-Fast vs o1 (Reasoning) rated Deliberate
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Calculate Your Team's Exact Bill Difference

Drag the sliders below to see real-time cost divergences based on your daily token consumption.

Daily Input Tokens500,000 tokens
10k1M5M10M+
Daily Output Tokens250,000 tokens
5k500k2M5M+
Gemini 2.0 FlashGoogle
99.3% Lower Cost
$4.50/mo
$0.10/1M in · $0.40/1M out
IQ Score88/100
Throughput260 t/s
Context1000k
o1 (Reasoning)OpenAI
$675.00/mo
$15.00/1M in · $60.00/1M out
IQ Score98/100
Throughput45 t/s
Context200k
Net Financial Advantage

Deploying Gemini 2.0 Flash over o1 (Reasoning) saves $670.50/mo ($8046/yr) at this volume.

See all o1 (Reasoning) alternatives →

Frequently Asked Questions

Is Gemini 2.0 Flash cheaper than o1 (Reasoning)?

Gemini 2.0 Flash is significantly more economical, charging $0.10/1M input compared to $15.00/1M for o1 (Reasoning).

Which model should I choose for production?

If your primary constraint is API cost and high query throughput, choose Gemini 2.0 Flash. If you require peak reasoning accuracy and complex tool use, o1 (Reasoning) is recommended.

How does context window compare between Gemini 2.0 Flash and o1 (Reasoning)?

Gemini 2.0 Flash offers the larger context window (1,000k tokens), allowing you to pass significantly larger codebases or documents without chunking.

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