GPT-5.3-Codex-SparkvsQwen3-Next
GPT-5.3-Codex-Spark | Qwen3-Next | |
|---|---|---|
| Specifications | ||
ParametersA rough measure of how big the model is. More parameters usually means more capable and more expensive to run, though it is a poor guide on its own — a smaller, newer model often beats a larger, older one. | — | 80B |
Context windowHow much text the model can hold in mind at once — your question, any documents you attach, the conversation so far, and its own reply. Go past it and the earliest part falls out of view. | 128k | 256k |
| API pricingUSD per 1M tokens · lower wins | ||
Cheapest inputLowest input rate across third-party providers, excluding the lab itself. The cheapest endpoint may run a quantised build or a shorter context — see "Available from" on the model page. | — | $0.09DeepInfra |
Cheapest outputLowest output rate across third-party providers, excluding the lab itself. May come from a different provider than the cheapest input. | — | $1.10DeepInfra |
| Overview | ||
| Company | OpenAI | Qwen |
| Release date | Feb 12 2026 | Sep 11 2025 |
| Access | Proprietary | Open Weight |
Other comparisons
GPT-5.3-Codex-SparkvsClaude Fable 5.1Qwen3-NextvsClaude Fable 5.1GPT-5.3-Codex-SparkvsGemini 3.8 FlashQwen3-NextvsGemini 3.8 FlashGPT-5.3-Codex-SparkvsMuse Spark 1.3Qwen3-NextvsMuse Spark 1.3GPT-5.3-Codex-SparkvsGrok 4.6Qwen3-NextvsGrok 4.6GPT-5.3-Codex-SparkvsDeepSeek-V4.1-FlashQwen3-NextvsDeepSeek-V4.1-FlashGPT-5.3-Codex-SparkvsMistral Medium 3.5Qwen3-NextvsMistral Medium 3.5
Frequently asked questions
GPT-5.3-Codex-Spark and Qwen3-Next don't publish scores on any of the same benchmarks, so there's no direct head-to-head comparison. Qwen3-Next shipped 154 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 256k (Qwen3-Next). GPT-5.3-Codex-Spark is proprietary, while Qwen3-Next is open weight.
Direct benchmark comparisons are unavailable — GPT-5.3-Codex-Spark and Qwen3-Next don't publish scores on any of the same benchmarks.