NEW YORK--(BUSINESS WIRE)--Apr 8, 2025--
Pangram, the most accurate and most reliable tool for detecting text created by AI, has released a new, better detection model. The upgrade improves on Pangram’s already unmatched accuracy and includes a unique feature that will aid educators when assessing student-submitted writing.
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The new model, already released to customers as part of regular updates and improvements, has been re-engineered and retrained, and is proving even more accurate and successful in identifying AI-generated text from the newest models of AI providers such as OpenAI, Anthropic, and Gemini. Pangram’s new model is also, it seems, able to detect AI-created text from models that are awaiting public release.
“Our detection technology was already the best because we built it differently,” said Max Spero, Pangram’s CEO. “Pangram does not rely on perplexity and burstiness like other AI classifiers. Pangram is trained using ‘synthetic mirrors’ of the hardest documents to classify and then it is retrained over and over again. That makes it adaptable to new models and doesn’t require significant re-engineering or time-intensive retraining to remain relevant.”
The new detection capabilities also are successful at detecting “humanized” text – text that has been put through an automated paraphrasing engine. Humanizing text is a common tactic used by students and others who may wish to hide or contaminate the origins of text. Several humanizing products explicitly advertise their ability to beat AI detection. Although, in internal testing, even these humanizers fail to bypass Pangram.
“The days of being able to ask ChatGPT to do your assignments, then wash it with Grammarly or QuillBot, and expecting to get away with it – those days are coming to an end. If they’re not already over,” said Spero. “With Pangram, teachers are going to spot the use of humanizers with precision and regularity,” he said.
In addition to the significant upgrades, Pangram has released a new feature that will assist educators in identifying text created by AI, and, more importantly, in making sound decisions about how to address it. Starting immediately in educator dashboards, Pangram results will now return a result of “mixed” for submitted text, in addition to the classifications of “human” or “AI.”
This “mixed” designation will be applied to text that is likely to be partly human composed, mixed with portions that are likely produced by AI. Further, the “mixed” designation will break down the percentages of each – human versus the percentage that is detected as AI. Finally, in a “mixed” result, educators will be able to see the specific segment of the text in each category – human or AI.
Insight into mixed text is important because many AI users, especially students, generate AI answers or solutions but then edit the results themselves, hoping to either fool an AI detector or add some of their own voice, or both.
“Being able to see a breakdown, seventy-thirty, or ninety-ten, will help teachers make better decisions about what they expected from their students and then determine the actions, if any, that might be necessary,” Spero said. “More information for teachers is better, more insight is better. We’re able to do that with Pangram.”
Spero and cofounder Bradley Emi have master’s degrees in computer science from Stanford University, where they met as undergraduates. Before founding Pangram, Spero was an AI engineer at Google, while Emi was a machine learning engineer at Tesla.
About Pangram
Pangram Labs is the technology leader in AI detection systems, surpassing other detection providers in accuracy, reliability, and information delivery. Pangram’s detection systems are relied on by thousands of businesses, primarily for assessing and addressing public reviews of products and services, many of which are compromised by AI. Founded by classmates at Stanford University, Pangram is gaining market traction in education as the accuracy alternative for assessing the authenticity of student work.
Pangram, the most accurate tool for detecting AI-generated text, has released a newly engineered model that is even more accurate in identifying AI-generated text from the newest models of AI providers such as OpenAI, Anthropic, and Gemini. Pangram can identify “human” or “AI” or “mixed” selections. This “mixed” designation applies to text that is likely to be partly human composed, mixed with portions that are likely produced by AI. Pangram also breaks down the percentages of each and the specific segment of the text in each category – human or AI. pangram.com
WASHINGTON (AP) — Defense Secretary Pete Hegseth on Monday spoke to widening concerns that the U.S.-Israeli strikes in Iran could spiral into a protracted regional conflict by declaring, “This is not Iraq. This is not endless.”
Hegseth, along with Air Force Gen. Dan Caine, chairman of the Joint Chiefs of Staff, held the Trump administration's first news briefing since Saturday's strikes. President Donald Trump, while he’s conducted a few phone interviews with individual reporters, has not taken questions on camera and only released two videos since the operation began.
Hegseth said the operation had a “clear, devastating, decisive mission” to “destroy the missile threat” from Iran, destroy its navy and “no nukes.”
“No stupid rules of engagement, no nation building quagmire, no democracy building exercise, no politically correct wars. We fight to win, and we don’t waste time or lives,” Hegseth said.
Asked if there are currently boots on the ground in Iran, Hegseth said, “No, but we’re not going to go into the exercise of what we will or will not do.”
He said it was “foolishness” to expect U.S. officials to say publicly “here’s exactly how far we’ll go.”
He also suggested the U.S. was not seeking to change the Iraninan regime with the killing of Iranian Supreme Leader Ayatollah Ali Khamenei,
“This is not a so-called regime change war, but the regime sure did change and the world is better off for it,” Hegseth said.
The briefing comes as the conflict has intensified into a wider war in the region. Iran and its allied armed groups have launched missiles at Israel, Arab states and U.S. military targets in the Middle East.
Four American troops have been killed in action. Trump on Sunday predicted there would be more U.S. casualties.
Caine on Monday said the U.S. expected to have additional losses.
“We grieve with you, and we will never forget you,” he said of the family members of those killed.
The latest sign of the escalating upheaval came when U.S. ally Kuwait “mistakenly shot down” three American fighter jets during a combat mission as Iranian aircraft, ballistic missiles and drones were attacking. U.S. Central Command said all six pilots ejected safely from the American F-15E Strike Eagles and were in stable condition.
U.S. officials have not offered any exit plan or offered signs that the conflict would end anytime soon, and the Khamenei cast doubt on the future of the Islamic Republic and hurtled the region into broader instability.
In laying out a case for the strikes, Hegseth pointed to the Iranian regime as having started the conflict from its inception, declaring that for 47 years it has "waged a savage, one-sided war against America.”
“Their war on Americans has become our retribution against their Ayatolloah and his death cult,” he said.
He did not point to any threat of an imminent nuclear threat from Iran, and he said again that last summer’s strikes by the U.S. and Israel “obliterated their nuclear program to rubble.”
Instead, Hegseth pointed to threats from other weaponry such as ballistic missiles and drones that justified the operation.
“Iran was building powerful missiles and drones to create a conventional shield for their nuclear blackmail ambitions,” Hegseth said.
He said that during negotiations with U.S. officials leading up to the attack, Iranian officials were “stalling."
“The former regime had every chance to make a peaceful and sensible deal. But Tehran was not negotiating," Hegseth said.
Trump, in an interview Sunday with The New York Times, said the assault could last “four to five weeks.”
Hegseth dismissed questions about the time frame and said, “President Trump has all the latitude in the world to talk about how long it may or may not take. Four weeks, two weeks, six weeks. It could move up. It could move back.”
The Republican president said the U.S. and Israel had struck hundreds of targets already. That included Israel and the U.S. bombing Iranian missile sites and targeted its navy, claiming to have destroyed its headquarters and multiple warships.
Caine said that, as with the operation that dropped massive bunker-buster bombs on Iranian nuclear facilities last year, Epic Fury also utilized B-2 stealth bombers, which the chairman said made a 37-hour round trip.
Caine several times referenced the use of cyber technologies in the strikes, which he said had “effectively disrupted communications and sensor networks,” leaving “the adversary without the ability to coordinate or respond effectively.”
Without giving specifics, Caine said the U.S. military “delivered synchronized and layered effects designed to disrupt, degrade, deny and destroy Iran’s ability to conduct and sustained combat operations on the U.S. side.”
The Iranian Red Crescent Society said at least 555 people have been killed in Iran so far by the U.S.-Israeli campaign. Eleven people have been killed in Israel and 31 in Lebanon, according to authorities there.
The news conference came hours before Secretary of State Marco Rubio was slated to brief congressional leadership on Monday.
Rubio, Hegseth, Caine and CIA Director John Ratcliffe were also set to brief the full membership of Congress on Tuesday.
In a private briefing on Sunday, Trump administration officials told congressional staff that U.S. intelligence did not suggest Iran was preparing to launch a preemptive strike against the U.S., three people familiar with the briefings said.
The administration officials instead acknowledged there was a more general threat in the region from Iran’s missiles and proxy forces, two of the people said. The third person, however, said the administration emphasized that Iran’s missiles and proxy forces posed an imminent threat to U.S. personnel and allies in the region.
The information conveyed to the congressional staff contrasts with the message from Trump, who said the objective of the mission was to eliminate “imminent threats from the Iranian regime.”
Senior Trump administration officials, who like others were not authorized to comment publicly and spoke on the condition of anonymity, had told reporters Saturday that there were indicators that the Iranians could launch a preemptive attack.
Associated Press writers Meg Kinnard in Charleston, S.C., Bill Barrow in Atlanta, David Klepper and Ben Finley in Washington and Farnoush Amiri in New York contributed to this report.
Gen. Dan Caine, chairman of the Joint Chiefs of Staff, greets Sen. Chris Coons, D-Del., before President Donald Trump delivers the State of the Union address to a joint session of Congress in the House chamber at the U.S. Capitol in Washington, Tuesday, Feb. 24, 2026. (Kenny Holston/The New York Times via AP, Pool)
