gpt-5.3-codex-spark
Input $0.36 USD · Output $2.81 USD / 1M tokens
chat comparison
gpt-5.3-codex-sparkvskimi-k3
Compare the things that matter before you build: current price, capabilities, and observed LLM7 usage.
Current pricing
See the cost difference clearly
kimi-k3
Input $1.70 USD · Output $8.00 USD / 1M tokens
What's different
Only capabilities that differ between these models are listed. Green highlights the broader supported option or larger context window.
Context window
gpt-5.3-codex-spark
400,000 tokens
kimi-k3Better fit
1,000,000 tokens
Reasoning
gpt-5.3-codex-sparkBetter fit
Supported
kimi-k3
Not supported
Estimate your workload
Try the same request volume against both public price lists.
Cost calculator
Adjust the volume to see an instant estimate at the current public price.
01M
Input estimate
$0.0036
Output estimate
$0.007025
Estimated total
$0.010625
Cost calculator
Adjust the volume to see an instant estimate at the current public price.
01M
Input estimate
$0.017
Output estimate
$0.02
Estimated total
$0.037
Quick take
- kimi-k3 has a larger context window.