Name appears in preview of Copilot's command-line version
"MAI-Code-2," apparently the next version of Microsoft's in-house programming AI "MAI-Code," appeared on Oct. 20 (Oct. 21 Japan time) in the list of selectable models in a preview version (1.0.101) of "Copilot CLI," a tool for using the AI coding tool "GitHub Copilot" from the command line. @aitrackerbot, an X account that tracks the appearance of models, reported it.
The previous week, "mai-code-2-flash," apparently a smaller version, had been found. This time, the name "mai-experimental-internal," apparently for internal testing, was also added. Microsoft has not announced it, and its performance, release timing and pricing are unknown.
First version released in June, replaced by improved version in September
In June, Microsoft released the first version, "MAI-Code-1-Flash," on GitHub Copilot. In the company's evaluation, it scored 71.6% on SWE-Bench Verified, a task of fixing software bugs, topping the 66.6% of Anthropic's small model "Claude Haiku 4.5." Pricing was set at $0.75 for input and $4.5 for output per 1 million tokens.
On Sept. 10, the company ended availability of the first version and switched to an improved version, "MAI-Code-1.1-Flash." Microsoft also offers models from OpenAI and Anthropic in Copilot.
