Verified claim · AI-ML · 100% confidence
OpenAI o4-mini publicly released on: 2025-04-16 by OpenAI — successor to o3-mini reasoning model with multimodal input + tool use.
Last verified 2026-05-16 · Methodology veritas-v0.1 · dc1848333261768b
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Structured fields
- Subject
- OpenAI o4-mini
- Predicate
publicly_released_on- Object
- 2025-04-16 by OpenAI — successor to o3-mini reasoning model with multimodal input + tool use
- Confidence
- 100%
- Tags
- o4-mini · openai · reasoning-model · multimodal · tool-use · released_on · 2025
Sources (2)
[1] official blog · OpenAI · 2025-04-16
Introducing OpenAI o3 and o4-mini“We're introducing the latest models in our o-series: OpenAI o3 and OpenAI o4-mini, our smartest, most capable models to date — for the first time integrating tool use directly into chain-of-thought reasoning.”
OpenAI is rated by SourceScore — see its reliability →[2] docs · OpenAI · 2025-04-16
o4-mini model documentationOpenAI is rated by SourceScore — see its reliability →
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OpenAI o4-mini publicly released on: 2025-04-16 by OpenAI — successor to o3-mini reasoning model with multimodal input + tool use. — SourceScore Claim dc1848333261768b (verified 2026-05-16). https://sourcescore.org/api/v1/claims/dc1848333261768b.jsonEmbed this claim
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The record lists 2 cited source(s): OpenAI, OpenAI. Each is shown below with a short excerpt and URL. The JSON record at https://sourcescore.org/api/v1/claims/dc1848333261768b.json includes SourceScore-issued HMAC integrity metadata, not a public verification proof.
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cURL
curl https://sourcescore.org/api/v1/claims/dc1848333261768b.jsonJavaScript / TypeScript
const r = await fetch("https://sourcescore.org/api/v1/claims/dc1848333261768b.json");
const envelope = await r.json();
console.log(envelope.claim.statement);
// "OpenAI o4-mini publicly released on: 2025-04-16 by OpenAI — successor to o3-mini reasoning model with multimodal input + tool use."Python
import httpx
r = httpx.get("https://sourcescore.org/api/v1/claims/dc1848333261768b.json")
envelope = r.json()
print(envelope["claim"]["statement"])
# "OpenAI o4-mini publicly released on: 2025-04-16 by OpenAI — successor to o3-mini reasoning model with multimodal input + tool use."LangChain (retrieve-then-cite)
from langchain_core.tools import tool
import httpx
@tool
def get_openai_o4_mini_fact() -> dict:
"""Fetch the verified SourceScore claim for OpenAI o4-mini."""
r = httpx.get("https://sourcescore.org/api/v1/claims/dc1848333261768b.json")
return r.json()