GPT-5 Pro vs Thinking Machines: Inkling
Compare GPT-5 Pro by OpenAI against Thinking Machines: Inkling by Thinking Machines, context windows of 400K vs 1.0M, tested across 41 shared challenges.
Our Verdict
GPT-5 Pro
Thinking Machines: Inkling
No community votes yet. On paper, these are closely matched - try both with your actual task to see which fits your workflow.
Thinking Machines: Inkling is 30x cheaper per token — worth considering if cost matters.
Too close to call
API pricing
Cost per 1M tokens
GPT-5 Pro
Input
$15.00
Output
$120.00
Thinking Machines: Inkling
Input
$1.00
15× cheaper
Output
$4.05
30× cheaper
Thinking Machines: Inkling is cheaper on both — 15× input, 30× output
Writing DNA
Style Comparison
Similarity
63%
Thinking Machines: Inkling uses 496.8x more bold
GPT-5 Pro
Thinking Machines: Inkling
65%Vocabulary57%
15wSentence Length19w
0.32Hedging0.30
0.0Bold5.0
2.9Lists2.7
0.00Emoji0.04
0.00Headings0.49
0.01Transitions0.06
Based on 11 + 27 text responses
Research
What we learned reading every model
FAQ
