Sonnet 5.5 vs Opus 5.5: which coding tasks need Opus?

Choose Sonnet 5.5 or Opus 5.5 for bug fixes, code review and complex changes. Compare task scope, effort, cache costs and the evidence behind the decision.

Sonnet 5 vs 5.5: should you upgrade your application?

Evaluate a Sonnet 5.5 upgrade from Sonnet 5 with a checklist for unchanged prices, behavior changes, API compatibility, testing and rollback.

Sonnet 5.5 effort: when to use medium, high or max

Choose Sonnet 5.5 effort using acceptance tests, latency and task cost. Learn why API and Claude Code defaults differ and when higher effort is worth testing.

Build a Source-Checked Competitor Table: A Computer Use Template

Build a traceable competitor research CSV with field-level sources, plan conditions and explicit unknowns. Includes a five-product template and partial worked example.

Practice Landing-Page QA with Codex Computer Use

Use a downloadable local lab to check links, form submissions and narrow layouts. Includes flawed and corrected pages, a checklist and offline-tested source.

Test a Computer Use API Controller Before Connecting a Model

Run 19 offline tests for computer-action validation, screenshot call IDs and form completion. Includes Python source and an unvalidated live adapter.

Make videos with Opus 5.5: prompts and MP4 export

Use Opus 5.5 video prompts for motion graphics, understand the rendering workflow, and try an editable Remotion starter with an MP4 export guide.

Translate image text without losing the layout

Localize a poster or product graphic with checked translations, an AI editing prompt, editable text layers, downloadable examples and export checks.

Claude Code returns 400 on a custom API? Check the Artifact schema

Identify the Claude Code Artifact input_schema regression on third-party endpoints, check the client version, and separate it from other HTTP 400 errors.

Gemini 2.5 Pro missing in AI Studio? Check the access change

Gemini 2.5 access is restricted to previous active users, not universally discontinued. Separate AI Studio visibility, API access and migration decisions.