GPT-5 nano vs Claude Sonnet 4: Pricing Comparison

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

OpenAI

GPT-5 nano

Pricing (per 1M tokens)

Input$0.0500
Output$0.4000
Cached Input$0.005000
Batch Input$0.0250
Batch Output$0.2000

Context & Output

Context Window400K tokens
Max Output128K tokens

Capabilities

Categorybudget
Multimodaltext
Fine-tuningNo
StreamingYes

Anthropic

Claude Sonnet 4

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

GPT-5 nano

98.3% cheaper

Cheaper Output Price

GPT-5 nano

97.3% cheaper

Larger Context Window

GPT-5 nano

+200K tokens

Cost Comparison

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

GPT-5 nano

$0.4500

$0.0500/1M input + $0.4000/1M output

Claude Sonnet 4

$18.00

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

GPT-5 nano is 97.5% cheaper for this workload.

Frequently Asked Questions

Which is cheaper, GPT-5 nano or Claude Sonnet 4?
For input tokens, GPT-5 nano is cheaper at $0.0500 per 1M tokens. For output tokens, GPT-5 nano is cheaper at $0.4000 per 1M tokens. The overall cost depends on your workload's input/output ratio.
What is the context window size of GPT-5 nano vs Claude Sonnet 4?
GPT-5 nano has a context window of 400K tokens, while Claude Sonnet 4 has 200K tokens. GPT-5 nano supports a larger context window of 400K tokens, which is beneficial for processing longer documents.
How do GPT-5 nano and Claude Sonnet 4 compare for batch processing?
Both models support batch processing with discounted rates. GPT-5 nano offers a better batch rate at $0.0250 per 1M input tokens. Batch processing is ideal for non-time-sensitive workloads where you can wait for processing.

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