Context Window
400,000
Input tokens
Model Cost Profile
Developer: openaiΒ· Tokenizer: GPT
Pricing updated Mar 18, 2026
Live Pricing
Input: $0.7500
Output: $4.50
Pricing via OpenRouter API Β· Last synced Mar 18, 2026 Β· MMLU score via public benchmark data
Provider Compliance
Context Window
400,000
Input tokens
Max Output
128,000
Completion tokens
Input Price / 1M
$0.7500
Prompt tokens
Output Price / 1M
$4.50
Completion tokens
Top Benchmark
78.1
MMLU score β best of MMLU, GPQA, MATH, HumanEval
Evaluation scores for OpenAI: GPT-5.4 Mini. The βTop Benchmarkβ shown above is the highest-priority score available (MMLU > GPQA > MATH > HumanEval).
Tool Calling Supportedπ MCP Compatible
Price History
Not enough data yet. Price tracking started recently β check back in a few days.
Performance History
Not enough data yet. Performance tracking started recently β check back in a few days.
| Usage Type | Price / 1M Tokens |
|---|---|
| Input (Prompt) | $0.7500 |
| Output (Completion) | $4.50 |
| Cache Read | $0.0750 |
| Web Search | $10,000.00 |
Estimate monthly spend for OpenAI: GPT-5.4 Mini based on your workload.
Estimated Monthly Cost
$73
25M input + 12M output tokens
Quick links for cost-down decisions before production rollout.