tokevenClaudevsGPT
Claude Haiku 4.5 vs o3 Mini
Side-by-side comparison of pricing, task quality, and projected cost at higher scale.
Pricing
Side-by-side pricing
Claude Haiku 4.5
Fast / Budgeto3 Mini
Fast / BudgetInput $/MTok
$1.00
$1.10
Output $/MTok
$5.00
$4.40
Cache discount
90% off
50% off
Context
200K
200K
Quality
Task confidence comparison
Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
72
vs
0
Code Review
70
vs
0
Summarization
82
vs
0
Q&A
86
vs
0
Extraction
88
vs
0
Reasoning
65
vs
0
Classification
90
vs
0
Creative Writing
60
vs
0
Claude Haiku 4.5
o3 Mini
Guidance
When to use Claude Haiku 4.5 vs o3 Mini
Choose Claude Haiku 4.5 when...
- -Cost matters: 9% cheaper on input tokens
Choose o3 Mini when...
- Similar performance; consider provider preference or ecosystem fit.
At scale
Cost at scale
Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Haiku 4.5
o3 Mini
100K tokens
$0.22
$0.21Cheaper
1M tokens
$2.20
$2.09Cheaper
10M tokens
$22.00
$20.90Cheaper
FAQ
When should I use Claude Haiku 4.5 instead of o3 Mini?
Claude Haiku 4.5 and o3 Mini perform similarly across all tracked tasks. Pick based on pricing and provider preference.
Is o3 Mini cheaper than Claude Haiku 4.5?
o3 Mini input costs $1.10/MTok, which is 10% more than Claude Haiku 4.5 at $1.00/MTok.
What are the context window sizes for Claude Haiku 4.5 and o3 Mini?
Claude Haiku 4.5 has a 200K token context window. o3 Mini has a 200K token context window.
Go deeper on either model
Per-call cost calculators, provider lineups, and price history for both models on this page.
Other comparisons
How Claude Haiku 4.5 and o3 Mini stack up against the rest of the field.
Track your real costs
Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.