GPT-5.6 Terra vs GPT-6 Astra
As of Oct 14, 2026, GPT-5.6 Terra leads GPT-6 Astra in 1 of 10 shared categories: Factuality.
GPT-5.6 Terra
#4 Best recorded rank: #4 in Abstraction (ARC), as of Oct 14, 2026.
GPT-6 Astra
Yes. SOTA in Math and co-SOTA in Vision.
| Category | GPT-5.6 Terra | GPT-6 Astra |
|---|---|---|
| General LLM | #35 · #35 in General LLM Margin 23.80952380952381 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in General LLM Margin 17.006802721088434 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #35 · #35 in Reasoning Margin 24.657534246575338 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 | #15 · #15 in Science Margin — Epoch AI benchmarking hub · Jul 9, 2026 | #2 · #2 in Science Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
| Coding | #13 · #13 in Coding Margin 63.63636363636363 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #13 · #13 in Coding › Agentic Margin 63.63636363636363 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 | #42 · #42 in Coding › Web dev Margin 38.3177570093458 LMArena leaderboard dataset · Oct 13, 2026 | #2 · Near-SOTA · Coding › Web dev Margin 0.9345794392523317 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #46 · #46 in Long context Margin 31.292517006802726 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Long context Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #11 · #11 in Vision Margin 31.578947368421055 Epoch AI benchmarking hub · Jul 9, 2026 | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Factuality | #24 · #24 in Factuality Margin 18.656716417910445 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Factuality Margin 19.402985074626883 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #4 · #4 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 Terra: $4.5 per 1M blended tokens.
GPT-6 Astra: $20 per 1M blended tokens.
GPT-5.6 Terra: closed weights.
GPT-6 Astra: closed weights.
General LLM: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in General LLM at #25 against #35.
Reasoning: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Reasoning at #23 against #35.
Science: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Science at #2 against #15.
Coding: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Coding at #2 against #13.
Coding › Agentic: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Coding › Agentic at #2 against #13.
Coding › Web dev: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Coding › Web dev at #2 against #42.
Long context: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Long context at #22 against #46.
Vision: As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Vision at #1 against #11.
Factuality: As of Oct 14, 2026, GPT-5.6 Terra leads GPT-6 Astra in Factuality at #24 against #25.
Abstraction (ARC): As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Abstraction (ARC) at #1 against #4.
GPT-5.6 Terra or GPT-6 Astra?
As of Oct 14, 2026, GPT-5.6 Terra leads GPT-6 Astra in 1 of 10 shared categories: Factuality.
GPT-5.6 Terra or GPT-6 Astra for General LLM?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in General LLM at #25 against #35.
GPT-5.6 Terra or GPT-6 Astra for Reasoning?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Reasoning at #23 against #35.
GPT-5.6 Terra or GPT-6 Astra for Science?
As of Oct 14, 2026, GPT-6 Astra leads GPT-5.6 Terra in Science at #2 against #15.