RELEASE · MODELS · #2218
MiniMax releases M3.1 Flash reasoning model; open weights planned for Oct. 23
MiniMax has released M3.1 Flash, a reasoning model that scores 42 on the Artificial Analysis Intelligence Index (up 13 points from M3), supports up to 1 million-token context, and is claimed to run three times faster with lower cost per task (~$0.22). The model shows improvements on complex-reasoning and factual benchmarks (48% on "Humanity's Last Exam," 56% on AA-Omniscience) but reportedly has a high hallucination rate (93%); API pricing is published and MiniMax plans an open-weights release on October 23.
KEY POINTS
- MiniMax has released M3.1 Flash, a reasoning model that scores 42 on the Artificial Analysis Intelligence Index (up 13 points from M3), supports up to 1 million-token context, and is claimed to run three times faster with lower cost per task (~$0.22).
- The model shows improvements on complex-reasoning and factual benchmarks (48% on "Humanity's Last Exam," 56% on AA-Omniscience) but reportedly has a high hallucination rate (93%); API pricing is published and MiniMax plans an open-weights release on October 23.
- A lower-cost, high-context reasoning model being released as open weights shifts competitive dynamics, affects benchmark comparisons, and increases access to advanced capabilities.
WHY IT MATTERS
A lower-cost, high-context reasoning model being released as open weights shifts competitive dynamics, affects benchmark comparisons, and increases access to advanced capabilities.