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Opus 4.7 vs Codex 5.5: Two Weeks Building With the New Frontier Coding Models

Opus 4.7 vs Codex 5.5: Two Weeks Building With the New Frontier Coding Models

Anthropic shipped Claude Opus 4.7. OpenAI shipped Codex 5.5. We've been building Test-Lab features with both for the last few weeks. Here is what actually changed, where each one shines, and how the new design and image features fit in.

AI codingClaude Opus 4.7Codex 5.5Claude CodeGPT image generationdeveloper toolscomparisonAI agents
Replay Every AI Browser Test With the New Playwright Trace Viewer

Replay Every AI Browser Test With the New Playwright Trace Viewer

Replay any AI browser test run inside Test-Lab with the embedded Playwright trace viewer. Walk the action timeline, inspect DOM snapshots, network calls, and console logs without ever downloading a trace.zip.

PlaywrightPlaywright trace viewerAI testingbrowser automationdebuggingtest replaytrace.ziptest maintenanceE2E testing
Generate Self-Healing Playwright Tests From a Single AI Run

Generate Self-Healing Playwright Tests From a Single AI Run

Generate real Playwright tests from one AI run, heal them when the UI shifts, refine them with chat. A practical fix for flaky tests at a fraction of the cost of running AI on every CI build.

PlaywrightPlaywright test generationflaky testsAI testingself-healing teststest automationPlaywright AIAI test refinementtest maintenanceE2E testing
Which LLM Is Best for Browser Automation? 11 Frontier Models Benchmarked on a Real Production Plan

Which LLM Is Best for Browser Automation? 11 Frontier Models Benchmarked on a Real Production Plan

We ran 11 frontier models against the same hardened production plan through our internal benchmarking harness. Here are the pass rates, durations, and costs that matter for AI driven browser automation.

AI testingLLM benchmarkbrowser automationGPT-5.4Claude Opus 4.7Gemini 3E2E testingcomparison
AI Testing vs Manual Testing: The Real Cost Comparison (With Data)

AI Testing vs Manual Testing: The Real Cost Comparison (With Data)

Manual testing costs more than you think. Automation costs less than you fear. Here's the actual data on what each approach costs, catches, and misses.

AI testingmanual testingtest automationcomparisonROIquality assurance
How to Fix Flaky Tests: A Practical Guide for QA Teams

How to Fix Flaky Tests: A Practical Guide for QA Teams

Flaky tests waste 2-5% of your engineering time and erode trust in your CI pipeline. Here's how to find them, fix them, and stop them from coming back.

flaky teststest automationquality assuranceCI/CDtest maintenanceAI testing
Automated QA Testing for Startups: Ship Fast Without Breaking Things

Automated QA Testing for Startups: Ship Fast Without Breaking Things

Most startups skip testing because they think it slows them down. The data says the opposite. Here's how to add automated QA without hiring a QA team or slowing your release cycle.

AI testingtest automationstartupsquality assuranceno-code testingE2E testing
Test-Lab.ai vs Testim vs Mabl: Which AI Testing Platform Wins?

Test-Lab.ai vs Testim vs Mabl: Which AI Testing Platform Wins?

A direct comparison of three AI testing platforms. Test-Lab.ai, Testim, and Mabl compared on test creation, self-healing, CI/CD integration, pricing, and who each one is actually built for.

AI testingtest automationcomparisonTestimMablplatform comparisonquality assurance
No-Code Test Automation: Ship Faster Without Writing Scripts

No-Code Test Automation: Ship Faster Without Writing Scripts

Your team is shipping features, not writing test scripts. Here's how no-code test automation actually works in 2026, what the tools get right, where they fall short, and how to start without slowing down.

no-code testingtest automationAI testingquality assuranceno-codecodeless testing
Best AI Test Automation Tools in 2026: An Honest Buyer's Guide

Best AI Test Automation Tools in 2026: An Honest Buyer's Guide

We compare six AI test automation platforms - Testim, Mabl, testRigor, Rainforest QA, Functionize, and Test-Lab.ai - by features, real pricing, ease of use, and who they're actually built for.

AI testingtest automationcomparisonbuyer's guidequality assuranceno-code testing
AI Testing & QA Automation Blog | Test-Lab.ai