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Description
GLM-5.3 is Z.ai’s advanced coding and agentic reasoning model built through scaled post-training on top of the GLM-5.2 base model. The release focuses on frontier coding, long-horizon software engineering, agent tasks, cyber evaluation, and reinforcement learning at scale. GLM-5.3 improves significantly over GLM-5.2 on complex coding benchmarks, real-world engineering environments, Terminal Bench 3.0, DeepSWE, Agents’ Last Exam, and Z.ai’s internal Code Bench. The model is trained on environments that resemble real professional work, including tasks involving codebases, infrastructure, documentation, compute clusters, experiments, bottleneck diagnosis, implementation, testing, and measurable optimization. Z.ai’s post-training stack includes IndexShare for efficient long-context processing, SAO for reinforcement learning on long-horizon tasks, and slime for large-scale asynchronous training. GLM-5.3 supports three thinking effort levels, including low, high, and max, with max recommended for coding tasks. The model also demonstrates emergent cyber capabilities across vulnerability discovery and exploitation benchmarks, prompting continued safety evaluation and hardening before weights are released. GLM-5.3 can be used through the GLM Coding Plan, ZCode, Claude Code, OpenCode, and other coding agent workflows. By combining stronger coding performance, long-horizon task execution, post-training scale, cyber evaluation, reasoning effort controls, and coding-agent integrations, GLM-5.3 supports advanced developer and research workflows.
Description
Gemini 2.5 Deep Think represents an advanced reasoning capability within the Gemini 2.5 suite, employing innovative reinforcement learning strategies and extended, parallel reasoning to address intricate, multi-faceted challenges in disciplines such as mathematics, programming, scientific inquiry, and strategic decision-making. By generating and assessing various lines of reasoning prior to delivering a response, it yields responses that are not only more detailed and creative but also more accurate, while accommodating longer interactions and integrating tools like code execution and web searches. Its performance has achieved top-tier results on challenging benchmarks, including LiveCodeBench V6 and Humanity’s Last Exam, showcasing significant improvements over earlier iterations in demanding areas. Furthermore, internal assessments reveal enhancements in content safety and tone-objectivity, although there is a noted increase in the model's propensity to reject harmless requests; in light of this, Google is actively conducting frontier safety evaluations and implementing measures to mitigate risks as the model continues to evolve. This ongoing commitment to safety underscores the importance of responsible AI development.
API Access
Has API
Yes
API Access
Has API
No
Integrations
APIFree
Yes
C#
Yes
C++
Yes
Cline
Yes
Cosmos
Yes
Factory Droid
Yes
Gemini
No
Gemini Enterprise
No
Hermes Agent
Yes
JavaScript
Yes
Integrations
APIFree
No
C#
No
C++
No
Cline
No
Cosmos
No
Factory Droid
No
Gemini
Yes
Gemini Enterprise
Yes
Hermes Agent
No
JavaScript
No
Pricing Details
Free
Open source
Free Trial
No
Free Version
Yes
Pricing Details
No price information available.
Free Trial
No
Free Version
No
Deployment
Web-Based
Yes
On-Premises
Yes
iPhone App
No
iPad App
No
Android App
No
Windows
Yes
Mac
Yes
Linux
Yes
Chromebook
No
Deployment
Web-Based
Yes
On-Premises
No
iPhone App
No
iPad App
No
Android App
No
Windows
No
Mac
No
Linux
No
Chromebook
No
Customer Support
Business Hours
No
Live Rep (24/7)
No
Online Support
Yes
Customer Support
Business Hours
Yes
Live Rep (24/7)
No
Online Support
Yes
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
No
Types of Training
Training Docs
Yes
Webinars
No
Live Training (Online)
No
In Person
Yes
Vendor Details
Company Name
Z.ai
Founded
2023
Country
China
Website
z.ai/
Vendor Details
Company Name
Founded
1998
Country
United States
Website
blog.google/products/gemini/gemini-2-5-deep-think/