# Codex

Type: Product

Source: AI Intelligence Brief — https://getaibrief.com/entity/codex
Canonical HTML page: https://getaibrief.com/entity/codex

## Timeline

- **2026-08-12**: OpenRouter lists DeepSeek V4 Pro 0813 — Model page goes live describing the model as the GA release of DeepSeek V4 Pro and a large-scale mixture-of-experts model hosted by one provider.
- **2026-08-12**: DeepSeek publishes Responses API guide — API docs detail OpenAI Responses API compatibility with base_url https://api.deepseek.com, including a deepseek-v4-flash example and SSE streaming events.

## Recent coverage (3 stories)

### DeepSeek V4 Pro 0813 GA: 1 endpoint for OpenAI Responses API drop-in
2026-08-12 17:33:15 · Sentiment: Positive · Impact: 7/10 · Sources: 2

DeepSeek's GA release of V4 Pro 0813, a large-scale mixture-of-experts model, now supports the OpenAI Responses API for drop-in Codex use. The compatibility layer silently ignores unsupported parameters and uses SSE streaming without `data: [DONE]`. OpenRouter offers single-provider hosting with performance and uptime tracking.
Full story: https://getaibrief.com/story/deepseek-v4-pro-0813-ga-responses-api-ai

### Claude Cowork Expands to 2 New Platforms with Cloud-First AI Agentics
2026-07-07 18:36:22 · Sentiment: Positive · Impact: 6/10 · Sources: 2

Anthropic is taking the AI agent concept beyond the desktop by making Claude Cowork available on mobile and web. With cloud-based processing, background task execution, and scheduled workflows, Cowork transforms from a development tool into a persistent AI coworker—heralding a new phase in the agent wars where models compete on workflow integration, not just chat quality.
Full story: https://getaibrief.com/story/claude-cowork-ai-agent-expansion-mobile-web

### OpenAI Acquires Astral to Bolster Codex and Developer Ecosystem
2026-03-19 15:07:17 · Sentiment: Positive · Impact: 7/10 · Sources: 2

OpenAI has announced the acquisition of Astral, a high-performance developer tooling startup, to accelerate the capabilities of its Codex engineering team. The move signals OpenAI's aggressive expansion into the software development lifecycle following recent acquisitions in cybersecurity and healthcare.
Full story: https://getaibrief.com/story/openai-acquires-astral-codex-developer-tooling

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This page is a machine-readable summary. Sentiment measures the directional read of each development for this entity, not the tone of the reporting; impact weights consequence, not syndication reach. See https://getaibrief.com/guides/methodology for the full editorial methodology.