February 4–5 was one of the densest stretches of the year across the stack.
ElevenLabs raises $500M at an $11B valuation
On February 4, voice-AI company ElevenLabs raised $500M at an $11B post-money valuation (led by Sequoia, more than 3× in a year). The capital targets its conversational/dubbing models ("audio general intelligence") and international go-to-market for ElevenAgents and ElevenCreative — the voice layer many agents speak through.
Copilot gains Claude and Codex agents
The same day, GitHub Copilot made Anthropic's Claude and OpenAI's Codex available as coding agents in public preview (Pro+/Enterprise), runnable in github.com, GitHub Mobile, and VS Code with shared context.
Model watch: GPT-5.3-Codex and Claude Opus 4.6
On February 5, both labs shipped flagships. OpenAI's GPT-5.3-Codex — its "most capable agentic coding model to date" — combined the Codex and GPT-5 stacks with new highs on SWE-Bench Pro. Anthropic's Claude Opus 4.6 topped Terminal-Bench 2.0 and Humanity's Last Exam, with a 1M-token context in beta, pricing unchanged at $5/$25 per million tokens.
What it means if you're picking tools
Voice and coding both leapt this week. Compare voice & audio and coding.
Sources: ElevenLabs Series D · Copilot Claude/Codex preview (GitHub) · GPT-5.3-Codex (OpenAI) · Claude Opus 4.6 (Anthropic)