Claude Sonnet 4.5: AI Coding King Is Here! | Trying It on Cursor & Claude Code Live

Claude Sonnet 4.5: AI Coding King Is Here! | Trying It on Cursor & Claude Code Live

🎙 Astro K Joseph 👥 85K 📅 September 30, 2025 ⏱ 15 min 👁 5K 📄 news review 🧭 2026-09-17
Available in: English (current) Français

Keywords

Claude Sonnet 4.5AI codingbenchmarkCursorClaude Code

Summary

Anthropic launched Claude Sonnet 4.5, claiming it is the best coding model in the world. The video tests this claim by using the model on both Cursor and Claude Code for two tasks: creating a landing page and building a color picker tool. For landing pages, both tools generated similar results with a purple gradient aesthetic, which the creator criticizes as generic. For the color picker, both successfully implemented upload, pixel selection, and display of hex/RGB/HSL/CMYK codes, but Cursor added an export option that was missing in Claude Code. The video notes that pricing remains the same as Sonnet 4, and the model is available across major coding tools. The creator plans further extensive testing and comparisons with Opus 4.1 and Sonnet 4.

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Critical Evaluation

Value of the Information & Strength of the Argument

The video delivers timely and relevant information about a newly released model, highlighting its claims and pricing. The argumentation is based on personal experience with two coding tasks, which provides practical insight but is not scientifically rigorous. The creator acknowledges limitations and suggests that more extensive testing is needed. The comparison is structured clearly, allowing viewers to see differences in output and features. However, the evaluation remains subjective, relying heavily on aesthetic preferences and a small sample size.

Scientific Rigor, Source Quality, Title Accuracy

The primary source is Anthropic’s official blog post, which is directly linked in the description. The video does not independently verify benchmark results but repeats them. The title matches the content, as the video indeed tests Sonnet 4.5 on Cursor and Claude Code. No external sources are cited beyond Anthropic. The rigor is moderate; the video is more of a quick hands-on review than an exhaustive analysis. The creator mentions using Chat GPT to generate prompts, but this is not a source. Overall, the sources are limited and not independently verified.

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Title / Content Match

Title accurately reflects content: testing Claude Sonnet 4.5 on Cursor and Claude Code.

Quality & Reliability

6/10

The video provides a hands-on test of the new model but relies on limited personal experience and lacks rigorous benchmarking. Claims are based on Anthropic's official announcement and two practical coding tasks.

Key Moments

Cited Sources

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External References

Contribution & Novelties

The video provides a quick, practical comparison of Claude Sonnet 4.5 on two popular coding tools, offering immediate but shallow insights. It highlights that while the model claims to be the best, real-world performance shows similar output aesthetics and minor feature differences. The main novelty is showing the model in action for typical developer tasks, but it lacks depth and rigorous evaluation.

Pour aller plus loin :

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Radar Profile

The radar profile shows balanced but moderate scores across all dimensions—timeliness is high, but depth, technicality, and reliability are average. This indicates a video that is informative for its timeliness but limited by its superficial treatment and lack of independent verification.

Reliability 6/10