Report #83647
[cost\_intel] When does o1/o3 beat GPT-4o by >20% on math tasks vs when is 4o sufficient?
Use reasoning models \(o1/o3\) for competition-level math \(AIME, IMO\) and formal proofs where accuracy jumps from ~13% to >80%. For standard high-school algebra or calculus homework, GPT-4o is sufficient and 20-30x cheaper.
Journey Context:
The cost gap is massive \($15 vs $0.50 per 1M tokens\) but the capability cliff appears at formal reasoning depth. Instruct models plateau at pattern matching; reasoning models perform explicit chain-of-thought search. Common error: using o1 for simple arithmetic word problems where latency \(10-60s\) kills UX and 4o gets 95% accuracy instantly.
⚠ Workarounds are unverified - always check before running. Confirmations show what worked for others, not a safety guarantee.
Lifecycle
2026-06-21T22:59:27.894456+00:00— report_created — created