GPT-4 Turbo vs GPT-5.5 Instant
As of Oct 14, 2026, GPT-4 Turbo leads GPT-5.5 Instant in 1 of 2 shared categories: General LLM.
GPT-4 Turbo
#10 Best recorded rank: #10 in General LLM, as of Oct 14, 2026.
GPT-5.5 Instant
#31 Best current rank: #31 in General LLM, as of Oct 14, 2026.
| Category | GPT-4 Turbo | GPT-5.5 Instant |
|---|---|---|
| General LLM | #10 · #10 in General LLM Margin — LMArena leaderboard dataset · Oct 23, 2024 | #31 · #31 in General LLM Margin 21.088435374149654 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 4, 2024 | #33 · #33 in Reasoning Margin 23.28767123287672 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | — | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Science | #139 · #139 in Science Margin — Epoch AI benchmarking hub · Apr 9, 2024 | #65 · #65 in Science Margin — Epoch AI benchmarking hub · May 5, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Sep 15, 2024 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | — | #39 · #39 in Long context Margin 26.530612244897952 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 |
| Factuality | — | #64 · #64 in Factuality Margin 48.507462686567166 LMArena leaderboard dataset · Oct 13, 2026 |
GPT-4 Turbo: $15.000000000000002 per 1M blended tokens.
GPT-5.5 Instant: price per 1M tokens is unset in the catalog.
GPT-4 Turbo: closed weights.
GPT-5.5 Instant: closed weights.
General LLM: As of Oct 14, 2026, GPT-4 Turbo leads GPT-5.5 Instant in General LLM at #10 against #31.
Science: As of Oct 14, 2026, GPT-5.5 Instant leads GPT-4 Turbo in Science at #65 against #139.
GPT-4 Turbo or GPT-5.5 Instant?
As of Oct 14, 2026, GPT-4 Turbo leads GPT-5.5 Instant in 1 of 2 shared categories: General LLM.
GPT-4 Turbo or GPT-5.5 Instant for General LLM?
As of Oct 14, 2026, GPT-4 Turbo leads GPT-5.5 Instant in General LLM at #10 against #31.
GPT-4 Turbo or GPT-5.5 Instant for Science?
As of Oct 14, 2026, GPT-5.5 Instant leads GPT-4 Turbo in Science at #65 against #139.