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Why emojis suck for reinforcement learning

Why emojis suck for reinforcement learning

The simplicity trap Sure, 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....

11.07.25
The rise of ‘Slow AI’: Why devs should stop speedrunning stupid

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....

11.05.25
The end of one-sized-fits-all prompts: Why LLM models are no longer interchangeable

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 ....

10.24.25
Claude Sonnet 4.5: better performance but a paradox

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...

10.03.25
GPT-5 Codex: How it solves for GPT-5's drawbacks

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, ...

09.30.25
We raised $60 million last week… so we made a funny video

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...

09.23.25
CodeRabbit commits $1 million to open source

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...

09.18.25
CodeRabbit’s MCP integration = Code reviews that see the whole picture

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....

09.17.25
CodeRabbit CLI - free AI code reviews in your CLI

CodeRabbit CLI - free AI code reviews in your CLI

CodeRabbit started with AI-powered code reviews in pull requests. In May, we brought that same intelligence to VS Code, Cursor, and Windsurf. Now, we're extending the AI code reviews developers love into the command line with CodeRabbit CLI. In case ...

09.16.25