Quick Take

Claude Sonnet 5 (released June 30, 2026) and MiMo-V2-Pro (released March 18, 2026) are two distinct AI models serving different market needs. Claude Sonnet 5 focuses on adaptive reasoning and low-effort tasks, while MiMo-V2-Pro provides a highly documented performance profile with clear benchmark data.

Benchmark Read

MiMo-V2-Pro offers a comprehensive look at its capabilities through several key benchmarks. It holds an Intelligence index of 40.3 and demonstrates strong performance in specialized areas: GPQA (0.87), HLE (0.283), SciCode (0.425), IFBench (0.688), LCR (0.607), TerminalBench Hard (0.409), and TAU2 (0.950). In contrast, Claude Sonnet 5 currently has no public benchmark rows available, making direct quantitative comparison difficult.

Cost and Speed

There is a significant price disparity between the two models. MiMo-V2-Pro is the more economical option, with a blended cost of $1.50/1M tokens (Input $1.00/1M, Output $3.00/1M). Claude Sonnet 5 is priced at a blended $6.00/1M (Input $3.00/1M, Output $15.00/1M).

Regarding performance, both models are competitive in speed. Claude Sonnet 5 achieves an output speed of 55.073 tok/s with a time to first token of 2.445s. MiMo-V2-Pro is slightly faster in initial response, with a time to first token of 1.574s and an output speed of 53.303 tok/s.

Best Fit

MiMo-V2-Pro is best suited for users who need verifiable performance data and cost-effective scaling. Its strong scores in benchmarks like GPQA and TAU2 suggest it is well-suited for technical and research-heavy tasks. Claude Sonnet 5 is best suited for users already embedded in the Anthropic ecosystem who require adaptive reasoning capabilities and integration with Anthropic’s specialized research tools.