Price, context and performance head to head. Data current as of April 2026.
Cheaper
o4-mini
Larger context
GLM 5.1
Faster
Tied
Higher quality
GLM 5.1
Enter how many requests per day you send with an average prompt (1K input + 1K output) and compare the monthly cost of both models.
o4-mini saves $7.41/mo vs GLM 5.1
Want us to build it for you?
We integrate GLM 5.1 or o4-mini into your product with caching, observability and continuous evaluation — typically 40-80% cheaper than the obvious first pick.
Other combinations developers frequently compare in 2026.
What people ask us when comparing GPT, Claude, Gemini and the rest.
A token is the unit an AI model processes: usually between half a word and a full word. Rule of thumb: 1,000 tokens ≈ 750 English words. A 20-word sentence is about 26 tokens; a 300-word email is around 400. Models charge for input tokens (your prompt) and output tokens (their answer) separately.
