Context Window
128,000
Tokens
Model Cost Profile
OpenAI: GPT-5.3 Chat
Developer: openai
Pricing updated Mar 16, 2026
Input rank: #276Output rank: #313
OpenAI's GPT-5.3 Chat model features an extensive context window of 128,000 tokens, making it suitable for applications requiring in-depth conversations and complex document analysis. Teams leveraging this API can expect a competitive input cost of $1.75 per million tokens and an output cost of $14.00 per million tokens, which can significantly impact budget considerations based on usage patterns. This model is ideal for customer support automation, content generation, and interactive AI applications that demand high contextual awareness and coherence.
👁 Vision🔧 Tool Calling🔌 MCP Compatible📋 Structured Output
Input Price / 1M
$1.75
Prompt tokens
Output Price / 1M
$14.00
Completion tokens
Top Benchmark
Pending
No benchmark data yet
Quality & Benchmarks
Evaluation scores for OpenAI: GPT-5.3 Chat. The “Top Benchmark” shown above is the highest-priority score available (MMLU > GPQA > MATH > HumanEval).
🔧
Tool Calling Supported🔌 MCP Compatible
Price History
OpenAI: GPT-5.3 Chat Pricing Trend
Input / 1M tokens0.0%Output / 1M tokens0.0%
Mar 7 — Mar 16
Current Input / 1M
$1.75
Current Output / 1M
$14.00
Performance History
OpenAI: GPT-5.3 Chat Speed Trend
Not enough data yet. Performance tracking started recently — check back in a few days.
Side-by-Side Pricing Table
| Usage Type | Price / 1M Tokens |
|---|---|
| Input (Prompt) | $1.75 |
| Output (Completion) | $14.00 |
| Cache Read | $0.1750 |
Cost Calculator
Estimate monthly spend for OpenAI: GPT-5.3 Chat based on your workload.
01.0B
0500M
Estimated Monthly Cost
$212
25M input + 12M output tokens
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