Substitutes · GPT-510 alternatives · within 10% performance · lower price
Cheaper alternatives to GPT-5
Drop-in substitutes within 10% of GPT-5's average benchmark, priced lower, sorted by price. Target price $1.25/M · target score 52.1.
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The cheapest drop-in alternative is gpt-oss-120b (free) at Free/M input · 100% cheaper than GPT-5 with 132% of the benchmark score.