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September 16, 2025

Raising our $60M Series B: Building the quality gates for AI-powered coding

When we started CodeRabbit, the idea was pretty simple: since all developers hate code reviews, why not make them faster and easier? After all, no one enjoys leaving the same comment about variable naming practices or style conventions for the tenth ...

Featured

November 07, 2025

Why emojis suck for reinforcement learning

The simplicity trapSure, a thumbs up is quick, but is it really teaching your AI reviewer anything useful? Emoji-based feedback feels good, is fast, and universal. On the surface, it even seems to make sense.But code review isn’t a light switch. It...

November 05, 2025

The rise of ‘Slow AI’: Why devs should stop speedrunning stupid

For as long as we’ve been building with machines, we’ve followed one core rule: faster is better. Lower latency, higher throughput, less waiting; that was gospel. Nobody wanted to wait 600ms for a button to respond or watch a spinner that lasts longe...

October 24, 2025

The end of one-sized-fits-all prompts: Why LLM models are no longer interchangeable

For developers and product builders, one assumption has guided the last few years of LLM application development. To improve your product, just swap in the latest frontier large language model. Flip a single switch and your tool’s capabilities level ...

October 03, 2025

Claude Sonnet 4.5: Better performance but a paradox

Sonnet 4.5 is Anthropic’s newest Claude model and in our code review benchmark, it feels like a paradox: more capable, more cautious, and at times more frustrating. It catches bugs Sonnet 4 missed, edges closer to Opus 4.1 in coverage, and even surfa...

September 30, 2025

GPT-5 Codex: How it solves for GPT-5's drawbacks

CodeRabbit’s code reviews help developers fix bugs and ship code. We recently wrote about benchmarking GPT-5 and opined that the model was a generational leap in reasoning for our use case of AI code reviews. As we rolled out to our wider user base, ...

September 23, 2025

We raised $60 million last week… so we made a funny video

Last week, we announced CodeRabbit’s $60 million Series B. To celebrate, we did what any responsible, developer-focused software company would do: we made a funny video.Not with all the money, to be clear. But we did decide to celebrate with somethi...

September 18, 2025

CodeRabbit commits $1 million to open source

Open source is the foundation of modern software development. From package managers and developer tools to frameworks and infrastructure, open source projects power nearly every piece of software we use today – including CodeRabbit itself. These proj...

September 17, 2025

CodeRabbit’s MCP integration = Code reviews that see the whole picture

Every dev team knows the pain of code reviews if performed in isolation. An AI tool (or even a teammate) can comment on syntax, style, and patterns, but without business requirements, deployment dependencies, or organizational knowledge, it’s just gu...

September 17, 2025

Handling ballooning context in the MCP era: Context engineering on steroids

Once upon a time, getting context into an LLM meant stringing together hacks, prayers, vector strategies, and overly complex RAG pipelines. Then came the Model Context Protocol (MCP), a clean, modular way to serve external data to models in productio...

Announcements

September 30, 2024

Announcing CodeRabbit Startup Program

In the startup world, speed and quality are often seen as tradeoffs, with AI-powered code reviews you can have both. Startups and small dev teams face numerous challenges shipping code day-to-day while navigating tight deadlines, and meeting user exp...

August 13, 2024

CodeRabbit Announces $16M Series-A Funding Led by CRV

Exciting news! CodeRabbit has secured a $16 million Series A funding round, with CRV leading the charge. This funding will help us accelerate our mission to transform code quality, security and developer productivity with AI.Reid Christian, General ...