Scan to join WeChat groupGPT-5.3 Codex Spark
GPT-5.3 Codex Spark: a gpt-codex-spark model from OpenAI, ~128K context, knowledge cutoff 2025-08-31
GPT-5.3 Codex Spark is a gpt-codex-spark model from OpenAI (~128K context, input around $1.75/1M tokens). Suitable for assistants, content generation, knowledge Q&A and business automation
starsCapabilities
visibilityVision understandingcodeFunction callingdata_objectStructured output
paymentsContext and pricing
Context limit128,000
Max output32,000
Knowledge cutoff2025-08-31
Input price$1.75/ 1M tokens
Output price$14/ 1M tokens
Cached input price$0.175/ 1M tokens
descriptionOverview
Overview
GPT-5.3 Codex Spark is provided by OpenAI, model ID gpt-5.3-codex-spark
Key specs
- Context: 128K tokens
- Max output: 32K tokens
- Knowledge cutoff: 2025-08-31
- Input price: $1.75/1M
- Output price: $14/1M
Best for
Consider GPT-5.3 Codex Spark when comparing context length, pricing, multimodal support and relay availability
lightbulbUse cases
- Image and multimodal Q&A
- Visual content analysis
- Document and screenshot understanding
thumb_upStrengths
- Large context window (~128K)
- Supports image and multimodal input
- High single-response output limit (~32K)
infoLimitations
- Knowledge cutoff 2025-08-31; newer facts need external retrieval
- Pricing and availability vary by upstream and relay; verify with official docs and tests