Gemini 3.5 Flash vs GPT-5.6 Terra
As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in 4 of 8 shared categories: General LLM, Reasoning, Long context, and Factuality.
Gemini 3.5 Flash
#12 Best recorded rank: #12 in Abstraction (ARC), as of Oct 15, 2026.
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 15, 2026.
| Category | Gemini 3.5 Flash | GPT-5.6 Terra |
|---|---|---|
| General LLM | #24 · #24 in General LLM Margin 16.326530612244895 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in General LLM Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #32 · #32 in Reasoning Margin 22.602739726027394 LMArena leaderboard dataset · Oct 13, 2026 | #35 · #35 in Reasoning Margin 24.657534246575338 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #18 · #18 in Science Margin — Epoch AI benchmarking hub · May 19, 2026 | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #13 · #13 in Coding Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #13 · #13 in Coding › Agentic Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #48 · #48 in Coding › Web dev Margin 43.925233644859816 LMArena leaderboard dataset · Oct 13, 2026 | #42 · #42 in Coding › Web dev Margin 38.3177570093458 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #28 · #28 in Long context Margin 19.04761904761905 LMArena leaderboard dataset · Oct 13, 2026 | #46 · #46 in Long context Margin 31.292517006802726 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #29 · #29 in Vision Margin 86.84210526315789 Epoch AI benchmarking hub · May 19, 2026 | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 |
| Factuality | #13 · #13 in Factuality Margin 10.447761194029852 LMArena leaderboard dataset · Oct 13, 2026 | #24 · #24 in Factuality Margin 18.656716417910445 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 19, 2026 | #4 · #4 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 |
Gemini 3.5 Flash: $3.375 per 1M blended tokens.
GPT-5.6 Terra: $4.5 per 1M blended tokens.
Gemini 3.5 Flash: closed weights.
GPT-5.6 Terra: closed weights.
General LLM: As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in General LLM at #24 against #35.
Reasoning: As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in Reasoning at #32 against #35.
Science: As of Oct 15, 2026, GPT-5.6 Terra leads Gemini 3.5 Flash in Science at #15 against #18.
Coding › Web dev: As of Oct 15, 2026, GPT-5.6 Terra leads Gemini 3.5 Flash in Coding › Web dev at #42 against #48.
Long context: As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in Long context at #28 against #46.
Vision: As of Oct 15, 2026, GPT-5.6 Terra leads Gemini 3.5 Flash in Vision at #11 against #29.
Factuality: As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in Factuality at #13 against #24.
Abstraction (ARC): As of Oct 15, 2026, GPT-5.6 Terra leads Gemini 3.5 Flash in Abstraction (ARC) at #4 against #12.
Gemini 3.5 Flash · GPT-5.6 Terra
Gemini 3.5 Flash or GPT-5.6 Terra?
As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in 4 of 8 shared categories: General LLM, Reasoning, Long context, and Factuality.
Gemini 3.5 Flash or GPT-5.6 Terra for General LLM?
As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in General LLM at #24 against #35.
Gemini 3.5 Flash or GPT-5.6 Terra for Reasoning?
As of Oct 15, 2026, Gemini 3.5 Flash leads GPT-5.6 Terra in Reasoning at #32 against #35.
Gemini 3.5 Flash or GPT-5.6 Terra for Science?
As of Oct 15, 2026, GPT-5.6 Terra leads Gemini 3.5 Flash in Science at #15 against #18.