Claude Opus 4.8 vs GPT-6 Astra
As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.8
It used to be. Was SOTA in Coding › Web dev.
GPT-6 Astra
Yes. SOTA in Math and co-SOTA in Vision.
| Category | Claude Opus 4.8 | GPT-6 Astra |
|---|---|---|
| General LLM | #20 · #20 in General LLM Margin 13.605442176870753 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in General LLM Margin 17.006802721088434 LMArena leaderboard dataset · Oct 13, 2026 |
| Reasoning | #10 · #10 in Reasoning Margin 7.534246575342465 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 | #27 · #27 in Science Margin — Epoch AI benchmarking hub · May 28, 2026 | #2 · #2 in Science Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
| Coding | #12 · #12 in Coding Margin 59.09090909090909 Terminal-Bench Harbor Hub · Oct 6, 2026 | #2 · Near-SOTA · Coding Margin 13.63636363636364 Terminal-Bench Harbor Hub · Oct 6, 2026 |
| Coding › Agentic | #12 · #12 in Coding › Agentic Margin 59.09090909090909 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 | #33 · Was SOTA · Coding › Web dev Margin 29.90654205607477 LMArena leaderboard dataset · Oct 13, 2026 | #2 · Near-SOTA · Coding › Web dev Margin 0.9345794392523317 LMArena leaderboard dataset · Oct 13, 2026 |
| Long context | #10 · Was SOTA · Long context Margin 6.802721088435391 LMArena leaderboard dataset · Oct 13, 2026 | #22 · #22 in Long context Margin 14.965986394557817 LMArena leaderboard dataset · Oct 13, 2026 |
| Vision | #13 · #13 in Vision Margin 36.842105263157904 Epoch AI benchmarking hub · May 28, 2026 | #1 · Co-SOTA · Vision Margin 0 Epoch AI benchmarking hub · Sep 3, 2026 |
| Factuality | #21 · #21 in Factuality Margin 16.417910447761187 LMArena leaderboard dataset · Oct 13, 2026 | #25 · #25 in Factuality Margin 19.402985074626883 LMArena leaderboard dataset · Oct 13, 2026 |
| Abstraction (ARC) | #12 · #12 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · May 28, 2026 | #1 · #1 in Abstraction (ARC) Margin — Epoch AI benchmarking hub · Sep 3, 2026 |
Claude Opus 4.8: $10 per 1M blended tokens.
GPT-6 Astra: $20 per 1M blended tokens.
Claude Opus 4.8: closed weights.
GPT-6 Astra: closed weights.
General LLM: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in General LLM at #20 against #25.
Reasoning: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in Reasoning at #10 against #23.
Science: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.8 in Science at #2 against #27.
Coding: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.8 in Coding at #2 against #12.
Coding › Agentic: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.8 in Coding › Agentic at #2 against #12.
Coding › Web dev: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.8 in Coding › Web dev at #2 against #33.
Long context: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in Long context at #10 against #22.
Vision: As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.8 in Vision at #1 against #13.
Factuality: As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in Factuality at #21 against #25.
Abstraction (ARC): As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.8 in Abstraction (ARC) at #1 against #12.
Claude Opus 4.8 or GPT-6 Astra?
As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in 4 of 10 shared categories: General LLM, Reasoning, Long context, and Factuality.
Claude Opus 4.8 or GPT-6 Astra for General LLM?
As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in General LLM at #20 against #25.
Claude Opus 4.8 or GPT-6 Astra for Reasoning?
As of Oct 14, 2026, Claude Opus 4.8 leads GPT-6 Astra in Reasoning at #10 against #23.
Claude Opus 4.8 or GPT-6 Astra for Science?
As of Oct 14, 2026, GPT-6 Astra leads Claude Opus 4.8 in Science at #2 against #27.