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OpenAIactive
GPT-5.3 Instant
gpt-5.3-instantCheapest GPT-5.3 variant. 26.8% fewer hallucinations than GPT-5.2.
Context Window
400K
tokens
Max Output
128K
tokens
Input Price
$0.30
per 1M tokens
Output Price
$1.20
per 1M tokens
Details
Familygpt-5
Training Cutoff2025-10-01
ReleasedMarch 4, 2026
Capabilities
VisionFunctionsStreamingJSON ModeCodeReasoningTool UseMultimodal
Documentation
https://api.openai.com/v1/chat/completionsEvaluation Scores(3 benchmarks)
GPQA Diamond
92.4%
MMLU-Pro
90.1%
Quick Access
curl pikaainews.com/api/models/openai-gpt-5-3-instantnpx pika-models info openai-gpt-5-3-instantGet API Access
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