Gemini 2.5 Flash vs Claude Opus 4: Pricing Comparison

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

Google

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 Opus 4

Pricing (per 1M tokens)

Input$15.00
Output$75.00
Cached Input$1.50
Batch Input$7.50
Batch Output$37.50

Context & Output

Context Window200K tokens
Max Output32K tokens

Capabilities

Categoryflagship
Multimodaltext + image
Fine-tuningNo
StreamingYes

Quick Verdict

Cheaper Input Price

Gemini 2.5 Flash

98.0% cheaper

Cheaper Output Price

Gemini 2.5 Flash

96.7% 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 Opus 4

$90.00

$15.00/1M input + $75.00/1M output

Gemini 2.5 Flash is 96.9% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, Gemini 2.5 Flash or Claude Opus 4?
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 Opus 4?
Gemini 2.5 Flash has a context window of 1M tokens, while Claude Opus 4 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 Opus 4 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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