Tooling2d ago
xAI will add an invisible watermark to Grok API text by default from Nov 7, covering grok-4.7 and six other models, with per-model admin opt-out
On Oct 31, xAI (signed as SpaceXSI in its docs) added an "Output Watermarking" page to its API docs: starting November 7, 2026, text generated by grok-4.7, grok-4.6, grok-4.5, grok-4.3, and the reasoning, non-reasoning, and multi-agent versions of grok-4.20 will carry an invisible watermark by default, to comply with the EU AI Act. It covers ordinary text, structured outputs, and tool call arguments on both the Responses and Chat Completions APIs, and works by slightly shaping token choice without adding any characters. Developers can read the x-watermark response header to check; team admins can opt out per model in the Console, but must confirm a legal exception applies, and some models may be locked on.
Tooling18h ago
Gemini API Deprecates Gemini 2.5 Pro and 2.5 Flash: From December 1, Requests Auto-Route to 3.8 Flash and 3.5 Flash-Lite at the New Models' Rates
In its November 2 Gemini API changelog, Google deprecated gemini-2.5-pro and gemini-2.5-flash and removed both from the Google AI Studio model picker. From December 1, 2026, requests to gemini-2.5-pro will automatically route to gemini-3.8-flash and requests to gemini-2.5-flash to gemini-3.5-flash-lite, billed at the new models' rates. Google flags breaking API changes: stricter function calling and thought_signature validation, thinking_level replacing thinking_budget, and removal of sampling parameters such as temperature and of prefilled model turns. The model string stays valid but behavior can change, so developers should switch model strings and rerun tests before December 1.
Tooling5d ago
Anthropic extends Claude text watermarking to older models including Mythos 5, Opus 4.7/4.6 and Sonnet 4.6, reportedly from November 3
Anthropics help center article "How Claude marks AI-generated content" (updated Oct 28) now lists older models released before Aug 2, 2026, including Claude Mythos 5, Opus 4.7, Opus 4.6, Opus 4.5, Sonnet 4.6 and Sonnet 4.5, as carrying text watermarks on first-party surfaces, and says Anthropic is adding watermarks to these models to meet EU AI Act Article 50 transparency duties. According to a customer email screenshot reported by outlets such as MACCUS, the legacy rollout starts Nov 3, with Amazon Bedrock possibly a few days later; Anthropics public pages do not state that date. The watermark follows Google DeepMinds SynthID-Text approach, adds no hidden characters or extra tokens, and detection is in private preview only for regulators, media, researchers and similarly obligated organizations, which has drawn complaints on X that users cannot check their own text.
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