Zaxxon

Penny winSelf-reported run (local Penny Compare)Oct 8, 2026

Neither as good as I remember but pretty good

Claude Code 2.1.295claude-opus-5-5Native Penny

Cost−$0.822

−39%

Penny 39% cheaper

Native

$2.08Penny

$1.26

Tokens−658.5k

−78%

Penny 78% fewer tokens

Native

839.7kPenny

181.2k

Model calls−4

−44%

Penny 44% fewer calls

Native

9Penny

Session replayProvided with explicit permission of session creator

Claude Code

› create an three.js clone of the classic game zaxxon

NATIVEclaude-opus-5-5

read: 686.7k
write: 91.0k
out: 60.8k
cost: $2.08

PENNYclaude-opus-5-5

read: 92.9k
write: 34.7k
out: 53.5k
cost: $1.26

Loading replay…

Native

zaxxon.html

Loading page…

Penny

index.html

Loading page…

Session Details

	Native	Penny
Model	claude-opus-5-5	claude-opus-5-5
Model calls	9	5
Cache read	686.7k	92.9k
Cache write	91.0k	34.7k
Fresh input	1.2k	14
Output	60.8k	53.5k
Total tokens	839.7k	181.2k
Background calls	claude-haiku-5-5 ×1	none
Cost	$2.08	$1.26

Costs are API-equivalent estimates at Standard prices, including the main conversation, subagents and background calls such as titles and the auto-mode reviewer.