Unverified50% confidenceFactExact time
OpenAI officially claims the Decisions API is about 10 times faster than the Responses API, but it did not disclose benchmarks and did not publish head-to-head accuracy comparisons with competitors.
1
Sources
50%
Confidence
Medium-term (~90 days)
Relevance
10/13/2026
First Seen
Valid until: 1/11/2027
Sources
Related Entities
Related Claims
UnverifiedOfficial data shows that the Decisions API returns results approximately 10 times faster than the Responses API72% similarUnverifiedTypesafe's tests found that processing 13 questions in a single call is 12.2x cheaper and 10x faster than asking them one by one, with identical answers.64% similarUnverifiedLinear probes are approximately ten thousand times cheaper to run than invoking a full language model, yet remain competitive.64% similarUnverifiedThe order of answer options causes the Decisions API's confidence to drift by approximately 13 percentage points.63% similarUnverifiedThe Responses API grew 100x over the past year, maintained over 99% reliability, reduced time-to-first-token by 45%, and improved tool call speed by more than 30%.63% similar
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