Zhipu AI

Announced upcoming release of GLM-5.1 series with 1M context window and 128K output tokens

Announced the release of the GLM-5.1 large language model, claiming significant performance gains over GLM-5.0.

version:

GLM-5.1

previous version:

GLM-5.0

Zhipu AI's GLM-5.1 model is reported to achieve autonomous self-improvement capability, evaluating and refining its own outputs without human metrics.

Released GLM-5.1 series of large language models, including flagship GLM-5.1-9B/1M with 1M token context.

Announced GLM-5.1 model series with 1M token context window and 128K output tokens

context window:

1 million tokens

output tokens:

128K

Publicly called for global partnerships with computing resource providers, signaling severe infrastructure constraints.

Reported 2025 revenue of 724.33 million yuan (US$104.8 million), a 131.9% year-on-year increase.

amount:

$104.8M

metric:

annual_revenue

Released GLM-5.0 model in Q4 2025 with strong performance on coding and math benchmarks.

version:

GLM-5.0

architecture:

mixture-of-experts (MoE)

Went public in Hong Kong in January 2025.

Raised $400M at $3B valuation

amount:

$400M

round:

Unknown

Listed on the Hong Kong stock exchange, raising approximately HK$3.5 billion.

amount:

HK$3.5B