GPT-5.3-Codex-SparkvsQwen2.5
GPT-5.3-Codex-Spark | Qwen2.5 | |
|---|---|---|
| Specifications | ||
Parameters | — | 72B |
Context window | 128k | 128k |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Feb 12 2026 | Sep 19 2024 |
| Access | Proprietary | Open Weight |
Which is better: GPT-5.3-Codex-Spark or Qwen2.5?
GPT-5.3-Codex-Spark and Qwen2.5 don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Qwen2.5 shipped 511 days before GPT-5.3-Codex-Spark, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (GPT-5.3-Codex-Spark) vs 128k (Qwen2.5). GPT-5.3-Codex-Spark is proprietary, while Qwen2.5 is open weight.
Direct benchmark comparisons are unavailable — GPT-5.3-Codex-Spark and Qwen2.5 don't publish scores on any of the same benchmarks.
Frequently asked questions
GPT-5.3-Codex-Spark was released by OpenAI on Feb 12 2026.
Qwen2.5 was released by Qwen on Sep 19 2024.
GPT-5.3-Codex-Spark has a 128k context window; Qwen2.5 has 128k.
GPT-5.3-Codex-Spark is a proprietary model released by OpenAI. Qwen2.5 is an open weight model released by Qwen.