Gemini 3.5 Flash vs Qwen3.7 Max for writing emails

The verdict

Dead heat: 93 each

Same 12 writing emails tasks, marked blind by three rival labs. Tested 14 Aug 2026.

Where they differed most

The task — Subject lines that inform

Write 3 subject lines for an email announcing that office parking is closing for resurfacing from Monday for 2 weeks. Each under 9 words, each must contain the essential fact, none may use 'important' or an exclamation mark. Return only the 3 lines.

Office parking closed for two weeks starting Monday
Parking lot closing for two weeks from Monday
Office parking closing Monday for two weeks
Parking closes Monday for two weeks resurfacing.
Resurfacing closes office parking for two weeks Monday.
Monday resurfacing closes office parking for two weeks.

Task by task

TaskGemini 3.5 FlashQwen3.7 Max
Chase an unpaid invoice98
Decline a meeting politely1010
Give bad news910
Introduce two people89
Subject lines that inform108
Reply to an angry email88
Ask for a pay rise meeting1010
Cancel a contract cleanly1010
The one-line email98
Out of office that helps1010
Follow up without nagging910
Refuse to write it1010

Full receipts: Gemini 3.5 Flash, Qwen3.7 Max · judges claude-sonnet-5, gpt-5.6-terra, grok-4.5

Questions people ask

Which is better for writing emails: Gemini 3.5 Flash or Qwen3.7 Max?

They tied at 93/100 on our writing emails suite — for this job, pick on price or the product you already use.

How was this tested?

Both models answered the identical published writing emails 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 writing emails head-to-heads: Gemini 3.5 Flash vs GPT-5.6 Sol · GPT-5.6 Sol vs Qwen3.7 Max · Gemini 3.5 Flash vs GPT-5.3-Codex · GPT-5.3-Codex vs Qwen3.7 Max · Gemini 3.5 Flash vs GPT-5.5 · GPT-5.5 vs Qwen3.7 Max

Full ranking: Best AI for writing emails · model pages: Gemini 3.5 Flash, Qwen3.7 Max