Gemini 3 Flash vs Claude Sonnet 4.5: Pricing Comparison

Compare pricing, capabilities, and costs for your LLM workloads.

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Gemini 3 Flash

Pricing (per 1M tokens)

Input$0.5000
Output$3.00
Cached Input$0.0500
Batch Input$0.2500
Batch Output$1.50

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 3 Flash

83.3% cheaper

Cheaper Output Price

Gemini 3 Flash

80.0% cheaper

Larger Context Window

Gemini 3 Flash

+800K tokens

Cost Comparison

Sample workload: 1,000,000 input tokens + 1,000,000 output tokens

Gemini 3 Flash

$3.50

$0.5000/1M input + $3.00/1M output

Claude Sonnet 4.5

$18.00

$3.00/1M input + $15.00/1M output

Gemini 3 Flash is 80.6% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, Gemini 3 Flash or Claude Sonnet 4.5?
For input tokens, Gemini 3 Flash is cheaper at $0.5000 per 1M tokens. For output tokens, Gemini 3 Flash is cheaper at $3.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Gemini 3 Flash vs Claude Sonnet 4.5?
Gemini 3 Flash has a context window of 1M tokens, while Claude Sonnet 4.5 has 200K tokens. Gemini 3 Flash supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
How do Gemini 3 Flash and Claude Sonnet 4.5 compare for batch processing?
Both models support batch processing with discounted rates. Gemini 3 Flash offers a better batch rate at $0.2500 per 1M input tokens. Batch processing is ideal for non-time-sensitive workloads where you can wait for processing.

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