Gemini 3.1 Pro vs Claude Sonnet 4.5: Pricing Comparison

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

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Gemini 3.1 Pro

Pricing (per 1M tokens)

Input$2.00
Output$12.00
Cached Input$0.2000
Batch Input$1.00
Batch Output$6.00

Context & Output

Context Window1M tokens
Max Output65.5K tokens

Capabilities

Categoryflagship
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 3.1 Pro

33.3% cheaper

Cheaper Output Price

Gemini 3.1 Pro

20.0% cheaper

Larger Context Window

Gemini 3.1 Pro

+800K tokens

Cost Comparison

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

Gemini 3.1 Pro

$14.00

$2.00/1M input + $12.00/1M output

Claude Sonnet 4.5

$18.00

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

Gemini 3.1 Pro is 22.2% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, Gemini 3.1 Pro or Claude Sonnet 4.5?
For input tokens, Gemini 3.1 Pro is cheaper at $2.00 per 1M tokens. For output tokens, Gemini 3.1 Pro is cheaper at $12.00 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of Gemini 3.1 Pro vs Claude Sonnet 4.5?
Gemini 3.1 Pro has a context window of 1M tokens, while Claude Sonnet 4.5 has 200K tokens. Gemini 3.1 Pro supports a larger context window of 1M tokens, which is beneficial for processing longer documents.
How do Gemini 3.1 Pro and Claude Sonnet 4.5 compare for batch processing?
Both models support batch processing with discounted rates. Gemini 3.1 Pro offers a better batch rate at $1.00 per 1M input tokens. Batch processing is ideal for non-time-sensitive workloads where you can wait for processing.

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