Claude Opus 4.6 vs GPT-6 Astra
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in 4 of 7 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.6
Close. Near-SOTA in Reasoning, rank #2.
GPT-6 Astra
Yes. SOTA in Math and co-SOTA in Vision.
| Category | Claude Opus 4.6 | GPT-6 Astra |
|---|---|---|
| General LLM | #4 · Near-SOTA · General LLM Margin 2.1276595744680833 LMArena leaderboard dataset · Oct 13, 2026 | #26 · #26 in General LLM Margin 13.829787234042556 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #2 · Near-SOTA · Reasoning Margin 1.5957446808510696 LMArena leaderboard dataset · Oct 13, 2026 | #24 · #24 in Reasoning Margin 13.297872340425528 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #11 · #11 in Math Margin 22.22222222222223 Epoch AI benchmarking hub · Feb 5, 2026 | #1 · SOTA · Math Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Science | #32 · #32 in Science Margin — Epoch AI benchmarking hub · Feb 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 | #37 · Was SOTA · Coding › Web dev Margin 28.799999999999997 LMArena leaderboard dataset · Oct 13, 2026 | #2 · Near-SOTA · Coding › Web dev Margin 0.7999999999999972 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #2 · Near-SOTA · Long context Margin 0.5319148936170421 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Long context Margin 13.297872340425528 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 | #3 · Near-SOTA · Factuality Margin 2.3255813953488342 LMArena leaderboard dataset · Oct 13, 2026 | #29 · #29 in Factuality Margin 17.441860465116278 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | — | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
Claude Opus 4.6: $10 per 1M blended tokens.
GPT-6 Astra: $20 per 1M blended tokens.
Claude Opus 4.6: closed weights.
GPT-6 Astra: closed weights.
General LLM: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in General LLM at #4 against #26.
Reasoning: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in Reasoning at #2 against #24.
Math: As of Oct 15, 2026, GPT-6 Astra leads Claude Opus 4.6 in Math at #1 against #11.
Science: As of Oct 15, 2026, GPT-6 Astra leads Claude Opus 4.6 in Science at #2 against #32.
Coding › Web dev: As of Oct 15, 2026, GPT-6 Astra leads Claude Opus 4.6 in Coding › Web dev at #2 against #37.
Long context: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in Long context at #2 against #25.
Factuality: As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in Factuality at #3 against #29.
Claude Opus 4.6 or GPT-6 Astra?
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in 4 of 7 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.6 or GPT-6 Astra for General LLM?
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in General LLM at #4 against #26.
Claude Opus 4.6 or GPT-6 Astra for Reasoning?
As of Oct 15, 2026, Claude Opus 4.6 leads GPT-6 Astra in Reasoning at #2 against #24.
Claude Opus 4.6 or GPT-6 Astra for Math?
As of Oct 15, 2026, GPT-6 Astra leads Claude Opus 4.6 in Math at #1 against #11.