Microsoft · Microsoft (Copilot / Phi)
Phi-1.5
Superseded1.3B model extending Phi-1 to general reasoning, beating many 10B+ models on reasoning tasks. (Guide gives year 2023 only; month not stated.)
About this version
Phi‑1.5 is a 1.3 billion‑parameter model in the Copilot family that builds on the earlier Phi‑1 architecture by extending it to general reasoning capabilities, achieving performance on reasoning tasks that surpasses many larger models with over 10 billion parameters. Released in 2023, it has since been superseded and is classified as a legacy tier model.
- Tier
- Legacy
- Released
- Jan 1, 2023
Release & change timeline
No dated events logged for this version yet.
Patches, price changes, benchmarks, and deprecations for Phi-1.5 will appear here as they’re recorded. Follow the broader Catch Me Up digest in the meantime.
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