Is Baidu Ernie 4.5 21B A3B Thinking or OpenAI GPT-4o cheaper?

Baidu Ernie 4.5 21B A3B Thinking is cheaper on output tokens ($0.28 vs $10.00 per 1M).

Which has the larger context window, Baidu Ernie 4.5 21B A3B Thinking or OpenAI GPT-4o?

Both models offer a similar context window.

Baidu Ernie 4.5 21B A3B Thinking vs OpenAI GPT-4o

Baidu Ernie 4.5 21B A3B Thinking is cheaper on output tokens. Choose Baidu Ernie 4.5 21B A3B Thinking or OpenAI GPT-4o based on the trade-off between cost, context, and the benchmarks that matter for your use case.

Spec	Baidu Ernie 4.5 21B A3B Thinking	OpenAI GPT-4o
Provider	Helicone	Helicone
Input / 1M tokens	$0.07	$2.50
Output / 1M tokens	$0.28	$10.00
Context window	128K	128K
Parameters	—	—
Open weights	No	No
Released	Mar 2025	May 2024

Baidu Ernie 4.5 21B A3B Thinking details →OpenAI GPT-4o details →

FAQ

Pricing is indicative — confirm with the provider before production use. Highlighted values indicate the better figure for that row.