Gemini 3.8 Flash vs GPT-5.5 Instant
As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
Gemini 3.8 Flash
Yes. Yes on General LLM (best per dollar); Reasoning (best per dollar). Not the overall leader.
GPT-5.5 Instant
#31 Best current rank: #31 in General LLM, as of Oct 14, 2026.
| Category | Gemini 3.8 Flash | GPT-5.5 Instant |
|---|---|---|
| General LLM | #7 · Was SOTA · General LLM Margin 4.761904761904759 LMArena leaderboard dataset · Oct 13, 2026 | #31 · #31 in General LLM Margin 21.088435374149654 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #6 · #6 in Reasoning Margin 4.794520547945211 LMArena leaderboard dataset · Oct 13, 2026 | #33 · #33 in Reasoning Margin 23.28767123287672 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #5 · #5 in Math Margin 8.888888888888886 Epoch AI benchmarking hub · Sep 2, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #4 · #4 in Science Margin — Epoch AI benchmarking hub · Sep 2, 2026 | #65 · #65 in Science Margin — Epoch AI benchmarking hub · May 5, 2026 |
| Coding | #15 · #15 in Coding Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Agentic | #15 · #15 in Coding › Agentic Margin 72.72727272727272 Terminal-Bench Harbor Hub · Oct 6, 2026 | — |
| Coding › Web dev | #27 · #27 in Coding › Web dev Margin 24.29906542056075 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #5 · Near-SOTA · Long context Margin 3.401360544217681 LMArena leaderboard dataset · Oct 13, 2026 | #39 · #39 in Long context Margin 26.530612244897952 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #15 · #15 in Vision Margin 42.10526315789474 Epoch AI benchmarking hub · Sep 2, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | #17 · #17 in Factuality Margin 13.43283582089552 LMArena leaderboard dataset · Oct 13, 2026 | #64 · #64 in Factuality Margin 48.507462686567166 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 2, 2026 | — |
Gemini 3.8 Flash: $1.5 per 1M blended tokens.
GPT-5.5 Instant: price per 1M tokens is unset in the catalog.
Gemini 3.8 Flash: closed weights.
GPT-5.5 Instant: closed weights.
General LLM: As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in General LLM at #7 against #31.
Reasoning: As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in Reasoning at #6 against #33.
Science: As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in Science at #4 against #65.
Long context: As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in Long context at #5 against #39.
Factuality: As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in Factuality at #17 against #64.
Gemini 3.8 Flash · GPT-5.5 Instant
Gemini 3.8 Flash or GPT-5.5 Instant?
As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in 5 of 5 shared categories: General LLM, Reasoning, Science, Long context, and Factuality.
Gemini 3.8 Flash or GPT-5.5 Instant for General LLM?
As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in General LLM at #7 against #31.
Gemini 3.8 Flash or GPT-5.5 Instant for Reasoning?
As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in Reasoning at #6 against #33.
Gemini 3.8 Flash or GPT-5.5 Instant for Science?
As of Oct 14, 2026, Gemini 3.8 Flash leads GPT-5.5 Instant in Science at #4 against #65.