ClaudevsGPT

Claude Haiku 5.5 vs GPT 6 Luna

Side-by-side comparison of pricing, task quality, and projected cost at higher scale.

Pricing

Side-by-side pricing

Claude Haiku 5.5

Fast / Budget

GPT 6 Luna

Fast / Budget
Input $/MTok
$0.10
$0.10
Output $/MTok
$0.50
$0.50
Cache discount
90% off
90% off
Context
1M
922K

Quality

Task confidence comparison

Confidence score from zero to one hundred by task type, where higher is better.
Code Generation
0
vs
62
Code Review
0
vs
0
Summarization
0
vs
53
Q&A
0
vs
0
Extraction
0
vs
75
Reasoning
0
vs
82
Classification
0
vs
0
Creative Writing
0
vs
63
Claude Haiku 5.5
GPT 6 Luna

Guidance

When to use Claude Haiku 5.5 vs GPT 6 Luna

Choose Claude Haiku 5.5 when...

  • -You need a larger context window (1M vs 922K)
  • Similar performance; consider provider preference or ecosystem fit.

Choose GPT 6 Luna 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 5.5
GPT 6 Luna
100K tokens
$0.02
$0.02
1M tokens
$1.10
$0.36Cheaper
10M tokens
$11.00
$3.65Cheaper

FAQ

When should I use Claude Haiku 5.5 instead of GPT 6 Luna?

Claude Haiku 5.5 and GPT 6 Luna perform similarly across all tracked tasks. Pick based on pricing and provider preference.

Is GPT 6 Luna cheaper than Claude Haiku 5.5?

Both models have the same input pricing at $0.10/MTok. Compare output pricing: $0.50 vs $0.50/MTok.

What are the context window sizes for Claude Haiku 5.5 and GPT 6 Luna?

Claude Haiku 5.5 has a 1M token context window. GPT 6 Luna has a 922K token context window.

Track your real costs

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