Gemini 2.5 Flash vs Claude Sonnet 4.5: Pricing Comparison
Compare pricing, capabilities, and costs for your LLM workloads.
Gemini 2.5 Flash
Pricing (per 1M tokens)
Input$0.3000
Output$2.50
Cached Input$0.0300
Batch Input$0.1500
Batch Output$1.25
Context & Output
Context Window1M tokens
Max Output65.5K tokens
Capabilities
Categorymid
Multimodaltext + image + audio
Fine-tuningNo
StreamingYes
Anthropic
Claude Sonnet 4.5
Pricing (per 1M tokens)
Input$3.00
Output$15.00
Cached Input$0.3000
Batch Input$1.50
Batch Output$7.50
Context & Output
Context Window200K tokens
Max Output64K tokens
Capabilities
Categorymid
Multimodaltext + image
Fine-tuningNo
StreamingYes
Quick Verdict
Cheaper Input Price
Gemini 2.5 Flash
90.0% cheaper
Cheaper Output Price
Gemini 2.5 Flash
83.3% cheaper
Larger Context Window
Gemini 2.5 Flash
+800K tokens
Cost Comparison
Sample workload: 1,000,000 input tokens + 1,000,000 output tokens
Gemini 2.5 Flash
$2.80
$0.3000/1M input + $2.50/1M output
Claude Sonnet 4.5
$18.00
$3.00/1M input + $15.00/1M output
Gemini 2.5 Flash is 84.4% cheaper for this workload.
Frequently Asked Questions
Which is cheaper, Gemini 2.5 Flash or Claude Sonnet 4.5?
For input tokens, Gemini 2.5 Flash is cheaper at $0.3000 per 1M tokens. For output tokens, Gemini 2.5 Flash is cheaper at $2.50 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Gemini 2.5 Flash vs Claude Sonnet 4.5?
Gemini 2.5 Flash has a context window of 1M tokens, while Claude Sonnet 4.5 has 200K tokens. Gemini 2.5 Flash supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
How do Gemini 2.5 Flash and Claude Sonnet 4.5 compare for batch processing?
Both models support batch processing with discounted rates. Gemini 2.5 Flash offers a better batch rate at $0.1500 per 1M input tokens. Batch processing is ideal for non-time-sensitive workloads where you can wait for processing.
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