Claude 3 Haiku vs GPT-5.6 Terra
Compare Claude 3 Haiku by Anthropic against GPT-5.6 Terra by OpenAI, context windows of 200K vs 1.1M, tested across 54 shared challenges.
Our Verdict
GPT-5.6 Terra
Claude 3 HaikuRunner-up
No community votes yet. On paper, GPT-5.6 Terra has the edge — bigger model tier, newer, bigger context window.
Claude 3 Haiku is 12x cheaper per token — worth considering if cost matters.
Slight edge
API pricing
Cost per 1M tokens
Claude 3 Haiku
Input
$0.25
10× cheaper
Output
$1.25
12× cheaper
GPT-5.6 Terra
Input
$2.50
Output
$15.00
Claude 3 Haiku is cheaper on both — 10× input, 12× output
Writing DNA
Style Comparison
Similarity
73%
GPT-5.6 Terra uses 112.3x more headings
Claude 3 Haiku
GPT-5.6 Terra
50%Vocabulary57%
22wSentence Length18w
0.71Hedging0.85
0.3Bold2.8
5.9Lists4.6
0.00Emoji0.00
0.00Headings1.12
0.08Transitions0.06
Based on 13 + 27 text responses
Research
What we learned reading every model
FAQ
