01
THE PROBLEM
Production task
Classify 50,000 listing photos / month
Model in use
GPT-5 — flagship default
Monthly bill
$0
$0
/ year
⚠ often 5–20× more than the task needs
02
SEND YOUR TASK
DESCRIBE THE TASK
+ your prompt
+ 5–20 test cases
+ expected outputs
03
WE BENCHMARK
openmark.ai — benchmark results · your task
LIVE RUN
MODEL
SCORE
STABILITY
LATENCY
COST / RUN
AT VOLUME
GPT-5
87% (3.5/4.0)
±0.500
8.4s
$0.0600
$3,000/mo
Claude 4.5 Sonnet
89% (3.6/4.0)
±0.250
6.1s
$0.0360
$1,800/mo
DeepSeek V4
84% (3.4/4.0)
±1.000
11.3s
$0.0084
$420/mo
Gemini 2.5 Flash
RECOMMENDED
91% (3.7/4.0)
±0.000
2.6s
$0.0040
$200/mo
REAL API CALLS · DETERMINISTIC SCORING · NO LLM-AS-A-JUDGE
04
THE ANSWER
✓
Gemini 2.5 Flash
RECOMMENDED PRIMARY
91%
accuracy
2.4×
faster
≈15×
cheaper
$36,000
→
$36,000
/ yr
Synthesized PDF:
primary + fallbacks
·
cost at 1k / 10k / 50k
·
re-test triggers
48-hour turnaround once intake is complete
05
THE OFFER
OpenMark
AI Audit
$299 · ONE TASK · 48H
Request an audit
openmark.ai
/services
0:00
Which AI model should you actually be using?
The OpenMark AI Audit, explained in under a minute.
ONE TASK
REAL API CALLS
ANSWER IN 48H