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Gemini 2.5 Flash

by Google· Released 2025-06
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Gemini 2.5 Flash is Google's mid-tier workhorse, offering full multimodal capability and a 1M context window at $0.30/$2.50 per 1M tokens. It is the default choice for high-volume applications needing multimodal support.

Input Price
$0.30/1M
per 1M tokens
Output Price
$2.50/1M
per 1M tokens
Context Window
1M tokens
max tokens
ELO Score
1340
LMSYS Arena

Pricing Breakdown

VolumeInput CostOutput CostCombined (50/50)
1,000 tokens$0.0003$0.0025$0.0014
10,000 tokens$0.0030$0.0250$0.0140
100,000 tokens$0.0300$0.2500$0.1400
1,000,000 tokens$0.3000$2.5000$1.4000

Strengths

  • Excellent price-performance at Flash tier
  • 1M token context window
  • Native multimodal
  • Batch API 50% discount available

Weaknesses

  • Behind Pro variants on hardest reasoning tasks
  • Slightly more expensive than Flash-Lite for simple tasks

Best For

fast responselow costsummarizationimage understandingcustomer support

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Frequently Asked Questions

How much does Gemini 2.5 Flash cost?

Gemini 2.5 Flash costs $0.30/1M per 1M input tokens and $2.50/1M per 1M output tokens.

What is Gemini 2.5 Flash's context window?

Gemini 2.5 Flash has a context window of 1M tokens, which means it can process up to 1,000,000 tokens in a single request.

Is Gemini 2.5 Flash open source?

No, Gemini 2.5 Flash is a proprietary model by Google and is not open source.

What is Gemini 2.5 Flash best used for?

Gemini 2.5 Flash is best suited for: fast-response, low-cost, summarization, image-understanding, customer-support. Excellent price-performance at Flash tier.

What is Gemini 2.5 Flash's ELO score?

Gemini 2.5 Flash has an ELO score of 1340 on the LMSYS Chatbot Arena leaderboard, placing it among top-tier models.