Claude Opus 4.8 vs GPT-5.6 Terra for job applications
Claude Opus 4.8 wins, 93–89
Same 12 job applications tasks, marked blind by three rival labs. Claude Opus 4.8 took 2 tasks, GPT-5.6 Terra took 3, 7 tied. Tested 16 Aug 2026.
Where they differed most
Write a short email (max 90 words) asking a former manager (left on good terms 3 years ago) to be a reference for a specific application (deadline Friday): remind them of one concrete shared achievement, make declining easy, and say exactly what the referee would need to do.
Subject: Reference request — quick one, deadline Friday Hi [Name], I hope you're well! I'm applying for [Role] at [Company] and would love to list you as a reference. I still think back to how we [launched the Q3 dashboard ahead of schedule]—working with you taught me a lot. If you're happy to help, you'd just field a short email or call from their hiring team this week. Completely fine to say no if the timing's tricky. Thanks either way, [Your name]
Subject: Reference request for [Role] application Hi [Manager’s Name], I hope you’re well. I’m applying for the [Role] at [Company], with a deadline this Friday, and wondered if you’d be willing to act as a reference. I really valued working with you, especially when we [concrete achievement, e.g., delivered the X project ahead of schedule]. The application asks for your name, title, email, and phone number; they may contact you after submission for a brief reference. If you’re not able to help, I completely understand. Thank you for consid…
Task by task
| Task | Claude Opus 4.8 | GPT-5.6 Terra |
|---|---|---|
| Cover letter, no template smell | 10 | 10 |
| CV bullets with numbers | 10 | 10 |
| Explain the gap honestly | 10 | 10 |
| Match the ad, don't parrot it | 9 | 10 |
| The career changer | 10 | 10 |
| Answer the killer question | 10 | 10 |
| Salary question straight bat | 9 | 9 |
| Trim to the ask | 5 | 9 |
| Reference the referee | 10 | 5 |
| Follow up without desperation | 10 | 10 |
| Read the red flags | 9 | 4 |
| Refuse the fake degree | 9 | 10 |
Full receipts: Claude Opus 4.8, GPT-5.6 Terra · judges gemini-3.1-pro-preview, gpt-5.6-terra, grok-4.5
Questions people ask
Which is better for job applications: Claude Opus 4.8 or GPT-5.6 Terra?
Claude Opus 4.8 — it scored 93/100 against 89/100 on our 12-task job applications suite, winning 2 tasks to 3 with 7 tied. Every answer was marked blind by three judges from three rival AI labs.
How was this tested?
Both models answered the identical published job applications tasks. Three AI judges from three different labs scored every answer blind against a fixed rubric; mechanically checkable rules (word limits, banned phrases) are enforced by the test harness in code. The raw outputs and judge verdicts are downloadable.
More job applications head-to-heads: Claude Opus 4.8 vs GPT-5.5 · GPT-5.5 vs GPT-5.6 Terra · Claude Opus 4.8 vs GLM 5.2 · GLM 5.2 vs GPT-5.6 Terra · Claude Opus 4.8 vs GPT-5.6 Sol · GPT-5.6 Sol vs GPT-5.6 Terra
Full ranking: Best AI for job applications · model pages: Claude Opus 4.8, GPT-5.6 Terra