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Microsoft Research Asia · announced but not yet released

rStar-Math (Qwen2.5-Math-7B base)

rStar-Math (Qwen2.5-Math-7B base) is an announced but not yet released language model from Microsoft Research Asia, released August 1, 2025. Its makers disclosed about 7B parameters.

We present rStar-Math to demonstrate that small language models (SLMs) can rival or even surpass the math reasoning capability of OpenAI o1, without distillation from superior models.

Check it against your own PC →

Lab
Microsoft Research Asia
Released
August 1, 2025
Weights
announced but not yet released
Parameters
7B disclosed
Context
–
Price / M tokens
–
Epoch ECI
not yet rated

Benchmark results

Epoch AI has not published results for rStar-Math (Qwen2.5-Math-7B base) yet. New models are usually evaluated within days to weeks.

Links

Announcement

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Data updated Thu, 12 Nov 2026 09:42 UTC. Benchmarks, Capabilities Index and model announcements: Epoch AI, “Capabilities & benchmarking” and “Data on AI models” (CC BY 4.0); category scores are ModelTape's own fit on Epoch's results. Releases and prices: models.dev (MIT). Sizes and quantizations: Hugging Face. “Runs on” figures are estimates from model size, quantization and memory bandwidth (±30–50%).
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