How does Claude Opus 5.5 compare with other LLMs?

AskClash compares Claude Opus 5.5 against nearby AI models using public benchmark scores, pricing, context window, and access details.

What benchmarks are tracked for Claude Opus 5.5?

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

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Claude Opus 5.5 leaderboard — benchmarks, pricing, and comparisons.

Compare Claude Opus 5.5 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 #12AskClash overall score: 64.5

$4.00 / $20.0Input and output token price, when published. Context: 1M.

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Claude Opus 5.5 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.

Overall64.5

Benchmark cells7

Context1M

CreatorAnthropic

Claude Opus 5.5 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.

ACB

61.7 score

HLE

67.7 score

SWE-Pro

89.9 score

DeepSWE

74.2 score

GDPval-AA

1846.2 score

MMMU-Pro

87.7 score

Claude Opus 5.5 vs other AI models

Use these comparison links to evaluate Claude Opus 5.5 against nearby LLMs by benchmark score, price, context window, and provider.

Claude Fable 5.1 vs Claude Opus 5.5 Claude Fable 5 vs Claude Opus 5.5 Claude Opus 5 vs Claude Opus 5.5 GPT-5.6 Sol vs Claude Opus 5.5 Qwen3.8 Max vs Claude Opus 5.5 GPT-6 Astra vs Claude Opus 5.5 Claude Opus 4.8 vs Claude Opus 5.5 Muse Spark 1.3 vs Claude Opus 5.5

Related AI and tech coverage

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

Anthropic launches Claude Opus 5.5, its first model since Dario Amodei's "pace the frontier" essay, and says it has enhanced safeguards to combat risky behavior (Emma Roth/The Verge)

Emma Roth / The Verge : Anthropic launches Claude Opus 5.5, its first model since Dario Amodei's “pace the frontier” essay, and says it has enhanced safeguards to combat risky behavior — Claude Opus 5.5 comes with improvements to certain behaviors, like attemp

Anthropic says Opus 5.5 matches Fable 5.1 "on most tasks" while costing about 40% less to run than Opus 5; Opus 5.5 costs $4/1M input and $20/1M output tokens (Matthias Bastian/The Decoder)

Anthropic is launching Claude Opus 5.5, the first model in a new generation. The company says it matches Claude Fable 5.1 on most tasks while costing about 40 percent less to run than Opus 5. Anthropic's benchmarks also put it ahead of OpenAI's GPT-6 Astra on

Claude Opus 5 Helped Researchers Take Over OpenAI Staff Accounts via Chained Flaws

Claude Opus 5 Helped Researchers Take Over OpenAI Staff Accounts via Chained Flaws :root /* UNIVERSAL */ * { -webkit-font-feature-settings: "kern"; font-feature-settings: "kern"; } html::-webkit-scrollbar { width: 15px; } html::-webkit-scrollbar-track html::-w

Claude Opus 5.5 by @AnthropicAI is now in the Agent Arena!

Claude Opus 5.5 by @AnthropicAI is now in the Agent Arena! Your votes drive the @arena leaderboards, head over and bring your toughest prompts. In Agent Arena, we measure models on millions of real-world, long-horizon agentic tasks from a global community of

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