AI + Web3 Snapshot: Models, Markets & Major Protocol Upgrades

A quick snapshot of the most important AI and Web3 moves—new high-end AI agents, improved content verification, blockchain scalability upgrades, and evolving crypto market dynamics—all in one concise update.

Author

Tesseract Academy
December 26, 2025

AI News Snippets

OpenAI releases GPT-5.2

new flagship for professional work + long-running agents; plus GPT-5.2-Codex for agentic coding (refactors/migrations)

OpenAI hardens ChatGPT Atlas against prompt injection

automated RL red-teaming to discover + patch real-world agent exploits faster.

Google makes Gemini 3 Flash the default

speed/cost baseline in the Gemini app and AI Mode in Search.

Gemini can verify AI-generated videos via SynthID

flags the exact segments where the watermark appears.

Anthropic releases Claude Opus 4.5

positioned for high-end coding + agent workflows (with a system card)

Web3 News Snippets

Ethereum’s Fusaka upgrade goes live (Dec 3)

Osaka (execution) + Fulu (consensus) upgrade focused on scaling + UX. ethereum.org

Firedancer goes live on Solana mainnet

big validator-client diversity milestone.

Bitcoin 2025: volatility + the rise of private litigation

legal risk shifts from regulators to lawsuits.

Crypto M&A hits $8.6B across 267 deals

record pace, with more expected in 2026

Bitcoin’s 2025 rollercoaster may end on a low

options markets tracked higher odds of a sub-$90k year-end finish.

What’s new with Tesseract

New Symposium Series Announcement

We’re excited to announce a new partnership between Tesseract Academy and Enlighten Ventures with the launch of the Critical Decisions in AI symposium series.

As AI moves into high-stakes environments, the real challenge is no longer the technology — it’s how humans and AI make critical decisions together, at speed and scale.

This year-long global series brings together CTOs, CIOs, founders, investors, and AI leaders to explore real-world decision frameworks deployed in enterprise, defense, and government settings.

First Symposium:

Supercharge Decision-Making — Solving the World’s Hardest Problems at Speed and Scale
🗓 January 28 | 9:00 AM PT / 5:00 PM UK
🎤 Keynote: Tom Kehler (Founder & CEO, CrowdSmart) — AI pioneer behind human-machine decision systems used by NATO.

More speakers and industry panels will be announced soon.