GLM-5.3 was referenced in a brief discussion about a coding improvement. The only concrete detail given is the version number 5.3. No further specifics are provided, so it’s not possible to say what changes beyond the claimed coding leap from scaled post-training on the same base.
DeepSeek released the generally available version of its top model, DeepSeek-V4-Pro-0813, with agent improvements and API format support. It costs about 6 US cents per completed task, based on Artificial Analysis’s Intelligence Index. DeepSeek also revised its API pricing to use peak/off-peak rates starting 16 August 2026 16:00 UTC, with off-peak charged at half the regular rate, while the model’s performance still trails Kimi K3 on the index.
SpaceXAI released Grok 4.6 as a post-training upgrade to Grok 4.5, keeping the same base model but extending supplemental training and adding regenerated supervised fine-tuning plus reinforcement learning for long-running agent tasks. Grok 4.6 supports 500,000 context tokens and scores 61 on the Artificial Analysis Intelligence Index, up from 56 for Grok 4.5. The result is improved long-horizon task behavior and broader availability via the xAI API, Cursor, Grok Build, and routing partners, while there is still no open-weights or self-hosting option.
xAI released Grok 4.6, a new model aimed at long-running agents and more ambitious interactive and visual work. The model is confirmed at 1.5T. It shifts expectations in coding and knowledge-work tasks toward higher agent performance at lower token pricing (reported as $2/$6 per 1M input/output tokens) versus frontier peers.
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