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Claude Opus 4.8 vs DeepSeek-R1-Lite Preview

Anthropic Claude Opus 4.8 vs DeepSeek DeepSeek-R1-Lite Preview — side-by-side specs.

Anthropic
Claude Opus 4.8
DeepSeek
DeepSeek-R1-Lite Preview
Overview
CompanyAnthropicDeepSeek
Release dateMay 28 2026Nov 20 2024
Model type
Open sourceNoYes
Specifications
Parameters
Context window
Benchmarks
Agentic coding
SWE-Bench Pro
69.2%
Agentic terminal coding
Terminal-Bench 2.1
74.6%
Multidisciplinary reasoning
Humanity's Last Exam · no tools
49.8%
Multidisciplinary reasoning
Humanity's Last Exam · with tools
57.9%
Agentic computer use
OSWorld-Verified
83.4%
Agentic financial analysis
Finance Agent v2
53.9%
Knowledge work
GDPval-AA
1890
Timeline
Release gapDeepSeek-R1-Lite Preview shipped 554 days before Claude Opus 4.8

Which is better: Claude Opus 4.8 or DeepSeek-R1-Lite Preview?

Claude Opus 4.8 and DeepSeek-R1-Lite Preview don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-R1-Lite Preview shipped 554 days before Claude Opus 4.8, so benchmark comparisons should account for the intervening progress.

DeepSeek-R1-Lite Preview is an open-source / open-weight model; Claude Opus 4.8 is proprietary.

Direct benchmark comparisons are unavailable — Claude Opus 4.8 and DeepSeek-R1-Lite Preview don't publish scores on any of the same benchmarks.

Frequently asked questions

When was Claude Opus 4.8 released?
Claude Opus 4.8 was released by Anthropic on May 28 2026.
When was DeepSeek-R1-Lite Preview released?
DeepSeek-R1-Lite Preview was released by DeepSeek on Nov 20 2024.
Is Claude Opus 4.8 or DeepSeek-R1-Lite Preview open source?
DeepSeek-R1-Lite Preview is an open-source / open-weight model released by DeepSeek. Claude Opus 4.8 is a proprietary model released by Anthropic.

Other comparisons