LOADING DATASHEET
GROUNDED IN REAL HUMAN CONVERSATIONSYOUR BENCH
Gpt 4.5
by OpenAI
CLOSEDHOSTEDAPIPAID
RANKED #244 OF 270 ASSISTANTS · OVERALL #381 OF 6,566 · VIBE SCORE 5.1 · 776 VOICES
Gpt 4.5 available through cloud APIs.
HAPPY6.9
115 mentions
SAD8.1
144 mentions
VIBE TRAJECTORY
26 weeks · 81 voices
QUIETLY DEGRADING
Recent vibe and chatter are both sliding.
HOW TO USE IT
Closed model. OpenAI hosts it, so you use it through an app or an API.
PREFER OPEN SOURCE? THE CROWD HAS PICKS
Gpt 4.5 is closed, so you rent it. These open-weight models can genuinely stand in for it. Download once, own forever.
- OPEN WEIGHTS6.8
DeepSeek ReasonerDeepSeekPick for top reasoning and coding quality when you want open weights at low cost.🏆 NEAR-PEER QUALITY💻 STRONG AT CODE💸 COST EFFICIENT2.1k VOICESMATCH★★★ - OPEN WEIGHTS6.3
Phi 4 MiniMicrosoftPick for quick local tasks, math, and code on modest consumer hardware.🪶 RUNS ON LESS🔒 PRIVATE & OFFLINE⚡ FAST212 VOICESMATCH★★★
WHAT THE INTERNET SAYS
The internet is split on Gpt 4.5. Biggest praise: writing. Biggest gripe: getting facts right.
656 POSTS · 120 COMMENTS · GITHUB · REDDIT · DEV.TO · X · LEMMY · DEV FORUMS · BLOG
PEOPLE LOVE
- Good at writing and wording things (11 mentions)
- Popular for coding help (8 mentions)
PEOPLE COMPLAIN ABOUT
- Sometimes makes things up (13 mentions)
- People find it expensive (12 mentions)
- Outages, errors, or limits get in the way (5 mentions)
- Refuses or lectures more than people like (4 mentions)
TOPIC BY TOPIC
- PriceA SORE SPOT
6 thumbs up · 12 thumbs down
- Getting facts rightA SORE SPOT
4 thumbs up · 13 thumbs down
- WritingMOSTLY POSITIVE
11 thumbs up · 4 thumbs down
- Help with codePEOPLE LOVE THIS
8 thumbs up · 2 thumbs down
- Working when you need itA SORE SPOT
2 thumbs up · 5 thumbs down
- Saying no too muchA SORE SPOT
0 thumbs up · 4 thumbs down
IN THEIR OWN WORDS
- FROM REDDIT >
“GPT 4.5 available for API, Bonkers pricing for GPT 4.5, o3-mini costs way less and has higher accuracy, this is even more expensive than o1.”
- FROM REDDIT >
“Could you share your favorite GPT 4.5 writing samples that surprised you?.”
- FROM REDDIT >
“GPT 4.5 in MineBench refused to generate the given prompt, instead writing "HELP".”
- FROM REDDIT >
“GPT 4.5 not so good at coding, but great at other things.”
- FROM REDDIT >
“Secretly replaced by some dumbed down nerfed model of GPT 4....”
LOOKING FOR AN ALTERNATIVE?
Checked picks first: tags say why you would switch, stars say how fully each one stands in for Gpt 4.5.
> SOURCES (12)
- REDDIT · 2025-03-01 · 1463 UPVOTESThe Sesame voice model has been THE moment for me
The Sesame voice model has been THE moment for me
- REDDIT · 2025-04-14 · 891 UPVOTESOpenAI announced that GPT 4.5 is going soon, to free up GPUs!
OpenAI announced that GPT 4.5 is going soon, to free up GPUs!
- REDDIT · 2025-02-27 · 881 UPVOTESGPT-4.5 has an API price of $75/1M input and $150/1M output. ChatGPT Plus users are going to get 5 queries per month with this level of…
GPT-4.5 has an API price of $75/1M input and $150/1M output. ChatGPT Plus users are going to get 5 queries per month with this level of pricing.
- REDDIT · 2025-03-05 · 849 UPVOTESConfirmed by openAI employee, the rate limit of GPT 4.5 for plus users is 50 messages / week
Confirmed by openAI employee, the rate limit of GPT 4.5 for plus users is 50 messages / week
- REDDIT · 2025-02-28 · 747 UPVOTESGPT 4.5 as Donald Trump explaining creation of Earth
GPT 4.5 as Donald Trump explaining creation of Earth
- REDDIT · 2024-06-04 · 670 UPVOTESGPT 4.5 existence confirmed by openai employee
GPT 4.5 existence confirmed by openai employee
- REDDIT · 2025-02-28 · 620 UPVOTESGPT-4.5 will just invent concepts mid-conversation
GPT-4.5 will just invent concepts mid-conversation
- REDDIT · 2025-03-05 · 578 UPVOTESComment in r/OpenAI
Comment in r/OpenAI
- REDDIT · 2025-02-13 · 542 UPVOTESThe GPT 5 announcement today is (mostly) bad news
The GPT 5 announcement today is (mostly) bad news
- REDDIT · 2025-02-27 · 511 UPVOTESGPT-4.5's Low Hallucination Rate is a Game-Changer – Why No One is Talking About This!
GPT-4.5's Low Hallucination Rate is a Game-Changer – Why No One is Talking About This!
- REDDIT · 2025-02-27 · 449 UPVOTESAnyone underwhelmed by GPT 4.5?
Anyone underwhelmed by GPT 4.5?
- REDDIT · 2025-03-04 · 429 UPVOTESSam Altman suggests a new OpenAI paid plan: $20 converts to credits for various AI features (GPT-4.5, Sora, Deep Research, etc.)
Sam Altman suggests a new OpenAI paid plan: $20 converts to credits for various AI features (GPT-4.5, Sora, Deep Research, etc.)