GPT-5.5 Instant vs GPT-6 Astra
As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6 Astra in 0 of 5 shared categories.
GPT-5.5 Instant
#31 Best current rank: #31 in General LLM, as of Oct 14, 2026.
GPT-6 Astra
Yes. SOTA in Math and co-SOTA in Vision.
| Category | GPT-5.5 Instant | GPT-6 Astra |
|---|---|---|
| General LLM | #31 · #31 in General LLM Margin 21.088435374149654 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in General LLM Margin 17.006802721088434 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #33 · #33 in Reasoning Margin 23.28767123287672 LMArena leaderboard dataset · Oct 13, 2026 | #23 · #23 in Reasoning Margin 16.438356164383563 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #1 · SOTA · Math Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Science | #65 · #65 in Science Margin — Epoch AI benchmarking hub · May 5, 2026 | #2 · #2 in Science Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
| Coding | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 13, 2026 | #2 · Near-SOTA · Coding Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | — | #2 · Near-SOTA · Coding › Agentic Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | — | #2 · Near-SOTA · Coding › Web dev Margin 0.9345794392523317 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #39 · #39 in Long context Margin 26.530612244897952 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Long context Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #— · Not enough data Margin — LMArena leaderboard dataset · Oct 9, 2026 | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Factuality | #64 · #64 in Factuality Margin 48.507462686567166 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Factuality Margin 19.402985074626883 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
GPT-5.5 Instant: price per 1M tokens is unset in the catalog.
GPT-6 Astra: $20 per 1M blended tokens.
GPT-5.5 Instant: closed weights.
GPT-6 Astra: closed weights.
General LLM: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in General LLM at #25 against #31.
Reasoning: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in Reasoning at #23 against #33.
Science: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in Science at #2 against #65.
Long context: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in Long context at #22 against #39.
Factuality: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in Factuality at #25 against #64.
GPT-5.5 Instant or GPT-6 Astra?
As of Oct 14, 2026, GPT-5.5 Instant leads GPT-6 Astra in 0 of 5 shared categories.
GPT-5.5 Instant or GPT-6 Astra for General LLM?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in General LLM at #25 against #31.
GPT-5.5 Instant or GPT-6 Astra for Reasoning?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in Reasoning at #23 against #33.
GPT-5.5 Instant or GPT-6 Astra for Science?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.5 Instant in Science at #2 against #65.