GPT-5.6 Luna vs GPT-6 Astra
As of Oct 14, 2026, GPT-5.6 Luna leads GPT-6 Astra in 0 of 10 shared categories.
GPT-5.6 Luna
#16 Best current rank: #16 in Coding, as of Oct 14, 2026.
GPT-6 Astra
Yes. SOTA in Math and co-SOTA in Vision.
| Category | GPT-5.6 Luna | GPT-6 Astra |
|---|---|---|
| General LLM | #53 · #53 in General LLM Margin 36.054421768707485 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in General LLM Margin 17.006802721088434 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #55 · #55 in Reasoning Margin 38.35616438356164 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 | #25 · #25 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #2 · #2 in Science Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
| Coding | #16 · #16 in Coding Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #16 · #16 in Coding › Agentic Margin 77.27272727272728 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding › Agentic Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Web dev | #43 · #43 in Coding › Web dev Margin 39.25233644859813 LMArena leaderboard dataset · Oct 13, 2026 | #2 · Near-SOTA · Coding › Web dev Margin 0.9345794392523317 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #65 · #65 in Long context Margin 44.21768707482993 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Long context Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #19 · #19 in Vision Margin 52.63157894736842 Epoch AI benchmarking hub · Jul 9, 2026 | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Factuality | #35 · #35 in Factuality Margin 26.86567164179104 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Factuality Margin 19.402985074626883 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #19 · #19 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
GPT-5.6 Luna: $0.44999999999999996 per 1M blended tokens.
GPT-6 Astra: $20 per 1M blended tokens.
GPT-5.6 Luna: closed weights.
GPT-6 Astra: closed weights.
General LLM: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in General LLM at #25 against #53.
Reasoning: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Reasoning at #23 against #55.
Science: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Science at #2 against #25.
Coding: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Coding at #2 against #16.
Coding › Agentic: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Coding › Agentic at #2 against #16.
Coding › Web dev: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Coding › Web dev at #2 against #43.
Long context: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Long context at #22 against #65.
Vision: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Vision at #1 against #19.
Factuality: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Factuality at #25 against #35.
Abstraction (ARC): As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Abstraction (ARC) at #1 against #19.
GPT-5.6 Luna or GPT-6 Astra?
As of Oct 14, 2026, GPT-5.6 Luna leads GPT-6 Astra in 0 of 10 shared categories.
GPT-5.6 Luna or GPT-6 Astra for General LLM?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in General LLM at #25 against #53.
GPT-5.6 Luna or GPT-6 Astra for Reasoning?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Reasoning at #23 against #55.
GPT-5.6 Luna or GPT-6 Astra for Science?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Luna in Science at #2 against #25.