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Gemini 2.5 Pro vs o1-mini

Compare Google and OpenAI AI models

Google
Gemini 2.5 Pro
vs
OpenAI
o1-mini

Cost Comparison (1000 input + 500 output tokens, 100 requests/day)

Gemini 2.5 Pro

Per Request:$0.006250
Daily:$0.625
Monthly:$18.75
Yearly:$228.125

o1-mini

Per Request:$0.003300
Daily:$0.33
Monthly:$9.90
Yearly:$120.45

Cost Differences

$0.002950
Per Request
$0.295
Daily
$8.85
Monthly
$107.675
Yearly

o1-mini costs less than Gemini 2.5 Pro

Feature Comparison

FeatureGemini 2.5 Proo1-mini
ProviderGoogleOpenAI
Input Price$1.25/1M tokens$1.10/1M tokens
Output Price$10.00/1M tokens$4.40/1M tokens
Context Window2,000,000 tokens128,000 tokens
Max Output131,072 tokens65,536 tokens
Categoryflagshipreasoning
Capabilities
textvisionaudiovideocode
textreasoning
Release Date3/25/20259/12/2024

Gemini 2.5 Pro vs o1-mini: Which Should You Choose?

Choosing between Gemini 2.5 Pro and o1-mini depends on your priorities: cost efficiency, context length, or raw capability. o1-mini is the more affordable option at $1.10/1M input tokens12% cheaper than Gemini 2.5 Pro. Meanwhile, Gemini 2.5 Pro offers a significantly larger context window at 2,000,000 tokens vs 128,000 for o1-mini.

These models come from different providers — Google and OpenAI — which means different API ecosystems, SDKs, rate limits, and terms of service. If you're already integrated with Google, switching to OpenAIinvolves migration effort beyond just pricing. Factor in your existing infrastructure when deciding.

These models target different tiers: Gemini 2.5 Pro is a flagship model while o1-mini is reasoning. This means they're optimized for different workloads. Gemini 2.5 Pro is built for complex tasks that require deeper reasoning, while o1-mini offers better value for routine operations.

Output costs matter too. Gemini 2.5 Pro charges $10.00/1M output tokens vs $4.40 for o1-mini. For generation-heavy workloads (content creation, code generation, summarization), output pricing often dominates your bill. o1-mini has the edge here at $4.40/1M output tokens.

Multimodal capabilities: Gemini 2.5 Pro supports vision (image inputs) while o1-mini is text-only. If your application needs image understanding, this narrows your choice.

Best Use Cases

Choose Gemini 2.5 Pro when:

  • • You need a larger context window (2,000,000 tokens)
  • • You need more capabilities (vision, audio, video, code)
  • • You need longer outputs (up to 131,072 tokens)
  • • You're already using Google's API ecosystem

Choose o1-mini when:

  • • Budget is a primary concern
  • • You're already using OpenAI's API ecosystem

Try Different Scenarios

Use the calculator below to see how costs change with different usage patterns

Gemini 2.5 Pro (Google)

o1-mini (OpenAI)

Start using Gemini 2.5 Pro today

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Start using o1-mini today

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Frequently Asked Questions

Which is cheaper, Gemini 2.5 Pro or o1-mini?
o1-mini is cheaper for input tokens at $1.10 per million tokens vs $1.25 for Gemini 2.5 Pro — that's 12% savings on input costs.
What is the context window difference between Gemini 2.5 Pro and o1-mini?
Gemini 2.5 Pro supports 2,000,000 tokens while o1-mini supports 128,000 tokens — a difference of 1,872,000 tokens in favor of Gemini 2.5 Pro.
Which model is better for AI Chatbot?
Both models support text. For ai chatbot, o1-mini is the lower-cost option, while Gemini 2.5 Pro offers a larger context window (2,000,000 vs 128,000 tokens). Choose o1-mini for budget sensitivity or Gemini 2.5 Pro for longer context tasks.
Which model has better overall pricing for heavy usage?
At 100 requests/day with 1,000 input and 500 output tokens each, Gemini 2.5 Pro costs about $18.75/month and o1-mini costs about $9.90/month. Overall, o1-mini has lower combined input + output rates ($1.10 in, $4.40 out) vs Gemini 2.5 Pro.

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