ClaudevsGPT

Claude Haiku 4.5 vs GPT 5 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 / Budget

GPT 5 Mini

Fast / Budget
Input $/MTok
$1.00
$0.25
Output $/MTok
$5.00
$2.00
Cache discount
90% off
90% off
Context
200K
272K

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
GPT 5 Mini

Guidance

When to use Claude Haiku 4.5 vs GPT 5 Mini

Choose Claude Haiku 4.5 when...

  • Similar performance; consider provider preference or ecosystem fit.

Choose GPT 5 Mini when...

  • -Cost matters: 75% cheaper on input tokens
  • -You need a larger context window (272K vs 200K)

At scale

Cost at scale

Estimated cost assuming a seventy percent input and thirty percent output token split.
Claude Haiku 4.5
GPT 5 Mini
100K tokens
$0.22
$0.08Cheaper
1M tokens
$2.20
$0.77Cheaper
10M tokens
$22.00
$7.75Cheaper

FAQ

When should I use Claude Haiku 4.5 instead of GPT 5 Mini?

Claude Haiku 4.5 and GPT 5 Mini perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is GPT 5 Mini cheaper than Claude Haiku 4.5?

Yes. GPT 5 Mini input costs $0.25/MTok vs $1.00/MTok for Claude Haiku 4.5, saving 75% on input.

What are the context window sizes for Claude Haiku 4.5 and GPT 5 Mini?

Claude Haiku 4.5 has a 200K token context window. GPT 5 Mini has a 272K token context window.

Track your real costs

Comparisons show estimated costs at list price. The dashboard reveals your real spend and savings.