About
GPT-5.4 is OpenAI’s latest frontier model, unifying the Codex and GPT lines into a single system. It features a 1M+ token context window (922K input, 128K output) with support for...
Related Models
Pricing
Input
$2.50
per 1M tokens
Output
$15.00
per 1M tokens
Blended
$5.63
per 1M tokens
Cheaper than 11% of models. Median price is $0.54/1M tokens.
Cost Calculator
Tokens per day1M
100K100M
Daily
$5.63
Monthly
$168.75
vs. Similar Models
Z.ai: GLM 5.2Q:-0.3
$1.46-74%
GPT-5.5 (medium)Q:-1.0
$11.25+100%
Google: Gemini 3.5 FlashQ:-1.2
$3.38-40%
GPT-5.5 (high)Q:+1.7
$11.25+100%
Performance
166
tokens/sec
Faster than 79% of models
92.94
seconds
Faster than 0% of models
92.94
seconds
Faster than 1% of models
Market Median
94 tok/s
76% faster
Median TTFT
1.11s
8250% slower
Throughput/Dollar
30
tok/s per $/1M
Speed Comparison
Qwen3 30B A3B 2507 Instruct
166 tok/s-0%
Ministral 3 3B
168 tok/s+1%
Qwen: Qwen3.5-35B-A3B
163 tok/s-2%
Context Window
1.1M
tokens
Larger than 97% of models
Max Output
128K
tokens
12% of context
Benchmarks
MMLU-ProNot evaluated
GPQA Diamond
92.0%
HLE
41.6%
LiveCodeBenchNot evaluated
SciCode
56.6%
TerminalBench Hard
57.6%
MATH-500Not evaluated
AIMENot evaluated
AIME 2025Not evaluated
IFBench
73.9%
Long Context Recall
74.0%
Tau2
87.1%
Market AverageTop Score