Model Details
Context Length
400K
Max Output
NA
Released
Nov 2025
Status
Active
Provider
OpenAI
Where is GPT-5.1 a perfect fit?
Where is GPT-5.1 a perfect fit? - Agentic workflows that need a reasoning model and tool-calling. - Fast, low-latency tasks using the “no reasoning” mode (e.g., simple prompts, search). - Coding and developer tasks: with its apply_patch and shell-tools, it’s ideal for automated code editing and executing shell commands. - Memory-heavy chat or multi-turn applications where extended prompt caching matters.
Quick Model Estimate
Your GPT-5 Cost Estimate
💰 Total Cost
USD 3.00
for 1000 input + 1000 output tokens
📥 Input (1000 × $0.625000)
USD 1.5000
📤 Output (1000 × $5.000000)
USD 1.5000
Cost Breakdown
📥 Input 50%
📤 Output 50%
Prices updated daily from official provider data.
Pricing
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Provider
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Input Price
(per 1M tokens) ↕ |
Output Price
(per 1M tokens) ↕ |
Context Window
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Last Updated
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|---|---|---|---|---|
 OpenAI |
$0.6250 | $5.0000 | 400,000 tokens | 2025-11-18 |