Gemini 3.8 Flash (High) by @GoogleDeepMind is here! It just debuted...
Arena.ai@arena
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Sep 03, 2026
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Gemini 3.8 Flash (High) by @GoogleDeepMind is here! It just debuted across Agent Arena, Text Arena, and Code Arena: WebDev.
In Agent Arena, it landed #14 with +5.94% net improvement. This ranks just above DeepSeek-V4-Pro at #15 (+5.91%) and is a significant jump from Gemini 3.7 Flash (High) at #32 (+0.84%). Its strongest signals are:
+14.78% in Praise vs. Complaint (implicit sentiment in users reactions)
+11.12% in Confirmed Success (explicit “yes, that worked” from users)
In Text Arena, Gemini 3.8 Flash (High) is #7 with 1494 pts, ahead of Claude Opus 5 (High) at #8 (1492 pts) and Gemini 3.7 Flash (High) at #10 (1491 pts)!
This release improved over Gemini 3.7 Flash (High) by category as well:
- Writing, Literature & Language: #7 → #3
- Multi-Turn: #9 → #4
- Longer Query: #13 → #5
- Hard Prompts (English): #23 → #6
- Business, Management & Financial Ops: #26 → #7
- Coding: #22 → #7
- Hard Prompts: #13 → #7
- Instruction Following: #11 → #9
- Software & IT Services: #18 → #12
In the Code Arena: WebDev, Gemini 3.8 Flash (High) is #18 with 1567 points, enough to keep Google DeepMind at #8 when labs are ranked by their best-performing model.
Congrats to the @GoogleDeepMind team on the release!
In Agent Arena, it landed #14 with +5.94% net improvement. This ranks just above DeepSeek-V4-Pro at #15 (+5.91%) and is a significant jump from Gemini 3.7 Flash (High) at #32 (+0.84%). Its strongest signals are:
+14.78% in Praise vs. Complaint (implicit sentiment in users reactions)
+11.12% in Confirmed Success (explicit “yes, that worked” from users)
In Text Arena, Gemini 3.8 Flash (High) is #7 with 1494 pts, ahead of Claude Opus 5 (High) at #8 (1492 pts) and Gemini 3.7 Flash (High) at #10 (1491 pts)!
This release improved over Gemini 3.7 Flash (High) by category as well:
- Writing, Literature & Language: #7 → #3
- Multi-Turn: #9 → #4
- Longer Query: #13 → #5
- Hard Prompts (English): #23 → #6
- Business, Management & Financial Ops: #26 → #7
- Coding: #22 → #7
- Hard Prompts: #13 → #7
- Instruction Following: #11 → #9
- Software & IT Services: #18 → #12
In the Code Arena: WebDev, Gemini 3.8 Flash (High) is #18 with 1567 points, enough to keep Google DeepMind at #8 when labs are ranked by their best-performing model.
Congrats to the @GoogleDeepMind team on the release!
Google DeepMind@GoogleDeepMind
Two new Gemini models are here to help scale your AI agents and secure code:
🔘 3.8 Flash: our most intelligent model yet with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
🔘 3.8 Flash Cyber: our most capable cybersecurity model with frontier-level vulnerability detection and automated patching.
🔘 3.8 Flash: our most intelligent model yet with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning.
🔘 3.8 Flash Cyber: our most capable cybersecurity model with frontier-level vulnerability detection and automated patching.
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Dive into the details for Agent Arena, Code: WebDev Arena, and Text Arena below:
arena.ai/leaderboard/ag…
arena.ai/leaderboard/co…
arena.ai/leaderboard/te…
arena.ai/leaderboard/ag…
arena.ai/leaderboard/co…
arena.ai/leaderboard/te…