Claude Sonnet 5.5 vs Gemini 4 Argon: cost comparison

Claude Sonnet 5.5 and Gemini 4 Argon have the same list prices per token, but for the same text Gemini 4 Argon works out about 1.3× cheaper, because Claude 4.7 and later count roughly 30% more tokens.

Scheduled price change: Gemini 4 Argon: Introductory price through Nov 30, 2026; $4 input / $20 output from Dec 1, 2026.

Claude Sonnet 5.5 Anthropic

$2.00input /1M

$0.10cached /1M

$10.00output /1M

Uses Anthropic's newer tokenizer, which produces about 30% more tokens for the same text than Claude Sonnet 4.6 and earlier.
Batch processing: 50% off input and output ($1.00 / $5.00 per 1M tokens).

Gemini 4 Argon Google

$2.00input /1M

$0.10cached /1M

$10.00output /1M

Introductory price through Nov 30, 2026; $4 input / $20 output from Dec 1, 2026.
Batch processing: 50% off input and output ($1.00 / $5.00 per 1M tokens).

Cost per 1,000 requests

Workload	Claude Sonnet 5.5	Gemini 4 Argon	Difference
Chatbot reply1,500 input / 400 output tokens	$9.10	$7.00	1.3×
RAG answer8,000 input / 600 output tokens	$28.60	$22.00	1.3×
Agent step30,000 input (80% cached) / 800 output	$29.12	$22.40	1.3×
Summarize a long report60,000 input / 1,200 output tokens	$171.60	$132.00	1.3×
Classify a ticket400 input / 10 output tokens	$1.17	$0.90	1.3×

Standard pricing, no batch discount. Claude 4.7+ costs include its ~30% higher token count for the same text. Price is only one factor; quality, speed, context length and rate limits matter too, so test both on your own prompts.

Run your own numbers in the calculator →

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