AI Model Release Tracker - Timeline of Major AI Models from 2022-2026

Home/Compare/Claude Opus 4.8 vs DeepSeek-V4-Pro

Claude Opus 4.8 vs DeepSeek-V4-Pro

Anthropic Claude Opus 4.8 vs DeepSeek DeepSeek-V4-Pro — side-by-side specs.

Anthropic
Claude Opus 4.8
DeepSeek
DeepSeek-V4-Pro
Overview
CompanyAnthropicDeepSeek
Release dateMay 28 2026Apr 24 2026
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%
Science
GPQA Diamond
90.1%
Agentic computer use
OSWorld-Verified
83.4%
Agentic financial analysis
Finance Agent v2
53.9%
Knowledge work
GDPval-AA
1890
Timeline
Release gapDeepSeek-V4-Pro shipped 34 days before Claude Opus 4.8

Which is better: Claude Opus 4.8 or DeepSeek-V4-Pro?

Claude Opus 4.8 and DeepSeek-V4-Pro don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek-V4-Pro shipped 34 days before Claude Opus 4.8, so benchmark comparisons should account for the intervening progress.

DeepSeek-V4-Pro is an open-source / open-weight model; Claude Opus 4.8 is proprietary.

Direct benchmark comparisons are unavailable — Claude Opus 4.8 and DeepSeek-V4-Pro 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-V4-Pro released?
DeepSeek-V4-Pro was released by DeepSeek on Apr 24 2026.
Is Claude Opus 4.8 or DeepSeek-V4-Pro open source?
DeepSeek-V4-Pro is an open-source / open-weight model released by DeepSeek. Claude Opus 4.8 is a proprietary model released by Anthropic.

Other comparisons