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

DeepSeek V3 Base vs GPT-5.3-Codex-Spark

DeepSeek
DeepSeek V3 Base
OpenAI
GPT-5.3-Codex-Spark
Overview
CompanyDeepSeekOpenAI
Release dateDec 2024Feb 12 2026
AccessOpen WeightProprietary
Specifications
Context window
128k
Timeline
Release gapDeepSeek V3 Base shipped 438 days before GPT-5.3-Codex-Spark

Which is better: DeepSeek V3 Base or GPT-5.3-Codex-Spark?

DeepSeek V3 Base and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. DeepSeek V3 Base shipped 438 days before GPT-5.3-Codex-Spark, so benchmark comparisons should account for the intervening progress.

DeepSeek V3 Base is open weight, while GPT-5.3-Codex-Spark is proprietary.

Direct benchmark comparisons are unavailable — DeepSeek V3 Base and GPT-5.3-Codex-Spark don't publish scores on any of the same benchmarks.

Frequently asked questions

DeepSeek V3 Base was released by DeepSeek on Dec 2024.

GPT-5.3-Codex-Spark was released by OpenAI on Feb 12 2026.

DeepSeek V3 Base is an open weight model released by DeepSeek. GPT-5.3-Codex-Spark is a proprietary model released by OpenAI.

Other comparisons