Why would I use a substitute instead of the original?

Price. The AI market has 10x+ price spreads for models within 5% benchmark performance. Most apps do not need the absolute frontier · Gemini 3 Flash often replaces GPT-5 at 10% of the cost with 95% of the quality.

What if I need the exact same capability profile?

For open-weight models, the arbitrage finder is better · it lists the same weights on different providers, guaranteeing identical quality. Substitutes are for swapping to a different model family.

Pricing · Substitutes16 targets · within 10% benchmark · sorted by savings

Substitute Finder · Cheaper Alternatives

For any popular model, find cheaper drop-in alternatives within 10% benchmark performance. Pick the one that meets your quality bar at the lowest price.

Substitute Finder · Cheaper Alternatives

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