Gemini 3 Pro vs Step 3.5 Flash
As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Gemini 3 Pro
It used to be. Was SOTA in General LLM.
Step 3.5 Flash
#99 Best current rank: #99 in Factuality, as of Oct 14, 2026.
| Category | Gemini 3 Pro | Step 3.5 Flash |
|---|---|---|
| General LLM | #16 · Was SOTA · General LLM Margin 10.884353741496597 LMArena leaderboard dataset · Oct 13, 2026 | #123 · #123 in General LLM Margin 83.6734693877551 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #22 · Was SOTA · Reasoning Margin 15.753424657534254 LMArena leaderboard dataset · Oct 13, 2026 | #124 · #124 in Reasoning Margin 85.61643835616438 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 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Coding › Web dev | #59 · Was SOTA · Coding › Web dev Margin 54.205607476635514 LMArena leaderboard dataset · Oct 13, 2026 | — |
| Long context | #21 · Was SOTA · Long context Margin 14.285714285714292 LMArena leaderboard dataset · Oct 13, 2026 | #119 · #119 in Long context Margin 80.95238095238095 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | — |
| Factuality | #10 · Was SOTA · Factuality Margin 8.208955223880594 LMArena leaderboard dataset · Oct 13, 2026 | #99 · #99 in Factuality Margin 74.6268656716418 LMArena leaderboard dataset · Oct 13, 2026 |
Gemini 3 Pro: price per 1M tokens is unset in the catalog.
Step 3.5 Flash: $0.15 per 1M blended tokens.
Gemini 3 Pro: closed weights.
Step 3.5 Flash: open weights.
General LLM: As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in General LLM at #16 against #123.
Reasoning: As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in Reasoning at #22 against #124.
Long context: As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in Long context at #21 against #119.
Factuality: As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in Factuality at #10 against #99.
Gemini 3 Pro or Step 3.5 Flash?
As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in 4 of 4 shared categories: General LLM, Reasoning, Long context, and Factuality.
Gemini 3 Pro or Step 3.5 Flash for General LLM?
As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in General LLM at #16 against #123.
Gemini 3 Pro or Step 3.5 Flash for Reasoning?
As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in Reasoning at #22 against #124.
Gemini 3 Pro or Step 3.5 Flash for Long context?
As of Oct 14, 2026, Gemini 3 Pro leads Step 3.5 Flash in Long context at #21 against #119.