Friday, August 21, 2026 · No. 390Prices synced 3 hours ago
All·AI·Model

The AI Model Price Index

GPT-5.3-Codex-Spark

by Poe · listed Mar 2026RT

Coding-optimized GPT model for repository edits, reviews, and agentic software work

Current rates USD per 1M tokens

Inputfree
Outputfree
Cache read—
Cache write—

Against the market

Input price vs. maker flagships ($/1M tokens)
GPT-5.3-Codex-SparkGPT-5.3-Codex-Spark: free per 1M tokensfreeDeepSeek V4 ProDeepSeek V4 Pro: $0.435 per 1M tokens$0.435Gemini 3.7 FlashGemini 3.7 Flash: $0.75 per 1M tokens$0.75Mistral Medium 3.5Mistral Medium 3.5: $1.50 per 1M tokens$1.50Grok 4.6Grok 4.6: $2.00 per 1M tokens$2.00Qwen3.8 MaxQwen3.8 Max: $2.00 per 1M tokens$2.00Claude Opus 5Claude Opus 5: $5.00 per 1M tokens$5.00GPT-5.6 SolGPT-5.6 Sol: $5.00 per 1M tokens$5.00
Output price vs. maker flagships ($/1M tokens)
GPT-5.3-Codex-SparkGPT-5.3-Codex-Spark: free per 1M tokensfreeDeepSeek V4 ProDeepSeek V4 Pro: $0.87 per 1M tokens$0.87Gemini 3.7 FlashGemini 3.7 Flash: $3.75 per 1M tokens$3.75Grok 4.6Grok 4.6: $6.00 per 1M tokens$6.00Qwen3.8 MaxQwen3.8 Max: $6.00 per 1M tokens$6.00Mistral Medium 3.5Mistral Medium 3.5: $7.50 per 1M tokens$7.50Claude Opus 5Claude Opus 5: $25.00 per 1M tokens$25.00GPT-5.6 SolGPT-5.6 Sol: $30.00 per 1M tokens$30.00

On the record

Model id
openai/gpt-5.3-codex-spark
Context window
128K tokens
Max output
16K tokens
Input modalities
text
Output modalities
text
Reasoning
yes
Tool calls
yes
Open weights
no
Knowledge cutoff
—
Released
2026-03-04
Last updated
2026-03-04
Provider docs
creator.poe.com/docs/external-applications/openai-compatible-api

Back of the envelope

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