Is o3 out yet?
Yes.
About o3
OpenAI's frontier reasoning model with tool use.
How we confirmed it
Released via official access
April 16, 2025 at 12:00 AM UTC
Release timeline
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Benchmarks
Humanity's Last Exam
o3 (high) (April 2025) · via Epoch AI · captured Nov 8, 2026 · source
20.3
LM Arena#113
o3 (2025-04-16) · via LM Arena · 58,894 votes · captured Oct 26, 2026 · source
1431.7526724620568
InstructionFollowing#41
o3 · via BenchLM.ai · captured Nov 8, 2026 · source
87.4
Sourced metrics mirrored with attribution - not community sentiment.
Data from BenchLM.ai.
Data from Epoch AI, “AI Benchmarking Hub” (CC BY 4.0).
Vibe rating
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Model Pulse
How is this model behaving today? One check-in per person per day: the running record of “did they nerf it”. Resets at midnight UTC.
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Community consensus
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Compare o3 with another model →
Also waiting on: Gemini 3.5 Pro, GLM-6, Grok 5, Amazon Nova 2 Pro
Comments
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