Claude Opus 4.5 vs GPT-6 Astra
As of Oct 14, 2026, Claude Opus 4.5 leads GPT-6 Astra in 1 of 8 shared categories: Long context.
Claude Opus 4.5
It used to be. Was SOTA in Reasoning.
GPT-6 Astra
Yes. SOTA in Math and co-SOTA in Vision.
| Category | Claude Opus 4.5 | GPT-6 Astra |
|---|---|---|
| General LLM | #33 · #33 in General LLM Margin 22.448979591836732 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in General LLM Margin 17.006802721088434 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #28 · Was SOTA · Reasoning Margin 19.86301369863014 LMArena leaderboard dataset · Oct 13, 2026 | #23 · #23 in Reasoning Margin 16.438356164383563 LMArena leaderboard dataset · Oct 13, 2026 |
| Math | #16 · #16 in Math Margin 33.33333333333333 Epoch AI benchmarking hub · Nov 24, 2025 | #1 · SOTA · Math Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Science | #68 · #68 in Science Margin — Epoch AI benchmarking hub · Nov 24, 2025 | #2 · #2 in Science Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
| Coding | #— · Not enough data Margin — Epoch AI benchmarking hub · Nov 24, 2025 | #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 | #53 · Was SOTA · Coding › Web dev Margin 48.598130841121495 LMArena leaderboard dataset · Oct 13, 2026 | #2 · Near-SOTA · Coding › Web dev Margin 0.9345794392523317 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #19 · Was SOTA · Long context Margin 12.925170068027214 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Long context Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | — | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Factuality | #36 · #36 in Factuality Margin 27.611940298507463 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Factuality Margin 19.402985074626883 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #49 · #49 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Nov 24, 2025 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
Claude Opus 4.5: $10 per 1M blended tokens.
GPT-6 Astra: $20 per 1M blended tokens.
Claude Opus 4.5: closed weights.
GPT-6 Astra: closed weights.
General LLM: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in General LLM at #25 against #33.
Reasoning: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Reasoning at #23 against #28.
Math: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Math at #1 against #16.
Science: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Science at #2 against #68.
Coding › Web dev: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Coding › Web dev at #2 against #53.
Long context: As of Oct 14, 2026, Claude Opus 4.5 leads GPT-6 Astra in Long context at #19 against #22.
Factuality: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Factuality at #25 against #36.
Abstraction (ARC): As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Abstraction (ARC) at #1 against #49.
Claude Opus 4.5 or GPT-6 Astra?
As of Oct 14, 2026, Claude Opus 4.5 leads GPT-6 Astra in 1 of 8 shared categories: Long context.
Claude Opus 4.5 or GPT-6 Astra for General LLM?
As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in General LLM at #25 against #33.
Claude Opus 4.5 or GPT-6 Astra for Reasoning?
As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Reasoning at #23 against #28.
Claude Opus 4.5 or GPT-6 Astra for Math?
As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.5 in Math at #1 against #16.