GPT-5.3-Codex-SparkvsQwen3.5-Plus
GPT-5.3-Codex-Spark | Qwen3.5-Plus | |
|---|---|---|
| Specifications | ||
Context window | 128k | 1M |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Feb 12 2026 | Feb 16 2026 |
| Access | Proprietary | Proprietary |
Which is better: GPT-5.3-Codex-Spark or Qwen3.5-Plus?
GPT-5.3-Codex-Spark and Qwen3.5-Plus don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. GPT-5.3-Codex-Spark shipped 4 days before Qwen3.5-Plus, so benchmark comparisons should account for the intervening progress.
Context windows are 128k (GPT-5.3-Codex-Spark) vs 1M (Qwen3.5-Plus).
Direct benchmark comparisons are unavailable — GPT-5.3-Codex-Spark and Qwen3.5-Plus 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.
Qwen3.5-Plus was released by Qwen on Feb 16 2026.
GPT-5.3-Codex-Spark has a 128k context window; Qwen3.5-Plus has 1M.
Other comparisons
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