How does Claude Opus 4.8 (Adaptive) compare with other LLMs?

AskClash compares Claude Opus 4.8 (Adaptive) against nearby AI models using public benchmark scores, pricing, context window, and access details.

What benchmarks are tracked for Claude Opus 4.8 (Adaptive)?

The page shows cached public benchmark cells such as HLE, GPQA, SWE-bench, SWE-Pro, Terminal-Bench, MCP Atlas, MMMU-Pro, ARC-AGI-2, Tau2, and related model scores when available.

LLM Leaderboard · Proprietary

Claude Opus 4.8 (Adaptive) benchmarks, pricing, and LLM comparison.

Compare Claude Opus 4.8 (Adaptive) vs GPT, Claude, Gemini, DeepSeek, open-weight, and frontier AI models using public benchmark scores, token pricing, context window, and access details.

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Rank #2AskClash overall score: 90.7

$5.00 / $25.0Input and output token price, when published. Context: 1M.

API/OAuthBilling and access path cached for this model row.

Claude Opus 4.8 (Adaptive) benchmark snapshot

AskClash combines public LLM benchmark cells into a weighted percentile score and penalizes missing coverage so narrow rows do not dominate better-measured models.

Overall90.7

Benchmark cells12

Context1M

CreatorAnthropic

Claude Opus 4.8 (Adaptive) public benchmark scores

Cached benchmark values can include HLE, GPQA, SWE-bench, SWE-Pro, SWE-Atlas, Terminal-Bench, MCP Atlas, MMMU-Pro, ARC-AGI-2, Tau2, and model-specific coding or agent scores.

RWT

9.5 score

HLE

57.9 score

GPQA

93.6 score

IFEval

62.2 score

SWE-bench

88.6 score

SWE-Pro

69.2 score

Terminal-Bench

74.6 score

OSWorld

83.4 score

MCP Atlas

82.2 score

Finance Agent

53.9 score

CharXiv

89.9 score

Tau2

94.4 score

Claude Opus 4.8 (Adaptive) vs other AI models

Use these comparison links to evaluate Claude Opus 4.8 (Adaptive) against nearby LLMs by benchmark score, price, context window, and provider.

Claude Opus 4.8 (Adaptive) vs Claude Mythos/Fable 5 Claude Opus 4.8 (Adaptive) vs GPT-5.5 xHigh Claude Opus 4.8 (Adaptive) vs Claude Opus 4.7 (Adaptive)Claude Opus 4.8 (Adaptive) vs GPT-5.4 xHigh Claude Opus 4.8 (Adaptive) vs Gemini 3.5 Flash High Claude Opus 4.8 (Adaptive) vs Kimi K2.7 Code Claude Opus 4.8 (Adaptive) vs Gemini 3.1 Pro Claude Opus 4.8 (Adaptive) vs Claude Opus 4.6 (Adaptive)

Related AI and tech coverage

Cached AskClash article matches that can provide release, provider, benchmark, pricing, or market context around this model.

Anthropic says Fable 5 uses conservative safety classifiers that trigger a fallback to Claude Opus 4.8 in ~5% of sessions, in areas like cybersecurity (Anthropic)

Techmeme

AI researcher claims he's already bypassed Anthropic's Fable 5 guardrails

To get around Anthropic’s security fence, Pliny said he used Unicode and homoglyphs, long-context framing, narrative and fiction framing, academic-style decomposition-recomposition, and a jailbroken Claude Opus 4.8 to get Fable to respond to his otherwise restricted prompts. Some crypto users had already expressed concern during the launches of Claude Fable 5 and Mythos earlier this year that it could be used to attack crypto protocols and software. A jailbroken version of Claude Fable 5 would m

Anthropic’s Claude Fable is a version of Mythos the public can access today

Anthropic is releasing Claude Fable 5, its first Mythos-class model available to the public. The model comes with guardrails that block responses in high-risk areas like cybersecurity and biology.

[AINews] Anthropic Claude Opus 4.7 - literally one step better than 4.6 in every dimension

Latent Space

Last cached leaderboard date: May 28, 2026. This model page is generated from the AskClash LLM Leaderboard cache and linked from the live leaderboard.