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#gemini#flash#model#google#models#https#pro#more#opus#still

Discussion (274 Comments)Read Original on HackerNews
Here's what I got for 1.8 cents and 13 seconds from the prompt "make me a cool thing in html":
https://gisthost.github.io/?6a77bc41a81718c6aaa10d4ab243c59f
Transcript here (it was part of a chat): https://gist.github.com/simonw/b6149a49d327164d67d62c3d12992...
Since this transcript has HTML in it, I decided to upgrade that tool to also render HTML.
I set Gemini 3.8 Flash the task, using my own VERY shonky coding agent tool (llm-coding-agent) - and it did a solid job.
So now you can see the "cool thing in html" rendered within the Markdown document using code that Gemini 3.8 Flash also wrote: https://tools.simonwillison.net/markdown-svg-renderer?url=ht...
Transcript where it built that is here: https://gist.github.com/simonw/3e36b98292dfdc1b3baff158faa74...
I would hope the people who make one of the most used JS engines in the world are capable of making a model good at JavaScript ;)
and probably a barely modified knock-off of some github project that it trained on
- Real world knowledge (when a thing opens and closes, the geographic region, historical facts). It's also the best at taking a cluster of places and working out a visiting order.
- Photo ranking (which photo should be the hero). Gemini can tell whether a photo is of the thing or of the view from it.
- Document parsing (extracting the relevant trip info from PDFs).
If you use LLMs for anything other than coding, I definitely recommend not discounting Gemini like I did just because other models are more popular.
Why you would rely on the model's weights to know opening hours, instead of having the model call a web search tool to verify it on the official site?
It was right on every nit, so it was surprising how well the model knows these things. If I ever release this I'll probably need the SERP API or Google Maps SDK (which I've heard is very expensive now), but for a personal trip where I will verify manually, using the LLM is okay for now.
My only wish is it were somewhat cheaper, as it tends to balloon pretty quickly when I'm using it in Opencode. I'm currently trying to offload a lot of work to subagents to stop the context expanding so rapidly. But on the upside, I rarely have to correct it - I've spent far less time arguing with this than with anything else so far.
For awhile now I've found Gemini will use Google search for pretty much any real world knowledge, which is a huge plus IMO. It's basically Google with a much better frontend and no ads/seo nonsense.
so far
Also them having their own silicon means they don't have to pay the Nvidia tax and can keep costs a lot lower.
Beginning to think Google is a dark horse in this race and some of Anthropic's "everything feels janky and rushed" karma is going to catch up.
Google was so hyped up early Gemini 3 era (only some months ago). And now dark horse? The TPU takeover almost crashed nvidia and everyone else.
Every time I personally tried Gemini models up until last week they simply couldn't do the long complex tasks I'd being doing with Anthropic models for many months.
I've been planing around with LLM-based trip planning for a very long time now as it fits my very ad hoc style of traveling very well.
But distances always had been.. lets say.. difficult.
Will test it with my upcoming trip to Greece then!
this has to be stong suit of ai agents any model
https://artificialanalysis.ai/models/gemini-3-8-flash shows an intelligence score of 59, the same as Opus 5 medium!
Wow - for a flash model this seems to benchmark powerfully. Remains to be seen what it is like to use.
With a score of 59, Gemini 3.8 Flash is in eighth place, falling behind even Grok 4.6, Kimi k3, and GLM 5.3.
https://imgur.com/a/BMOJBED
Further, opus 5 medium outputs 4x fewer tokens to achieve the same result, negating a lot of the speed difference.
These folks must laugh themselves to sleep. This whole industry hoodwinked the masses. It’s impressive.
Not sure on consumer/product use though
It's almost across the board better than Terra at less than half the price. 3.9 is likely to approach Sol at the 1/10th the price.
Hopefully OpenAI releases Astra first, and it's not only better than Sol but significantly cheaper, too.
Then I tell Opus to read the audit report and implement what it agrees with.
Flash is really good at this, and it is blazing fast in Antigravity CLI. Easily 10x faster than Opus.
Can't wait to try 3.8 Flash. If it's good enough, maybe I'll switch Flash to primary and make Opus the auditor.
It looks more like Google execs losing their mind and pressuring researchers to put DeepSWE directly into the training set.
It's clearly been "dealt with" already. When it launched we had interesting gaps and definitely differences. Now every new release is "crushing it".
...on Medium reasoning. Claude Opus 5 (high) is the default in e.g. Claude Code and scores 61. Still very impressive.
For example, it's not even close to Opus 5 on Terminal-bench 4.0, 19.1% vs. 51.8%.
So, yes, maybe it's still not - but this would be the only time it would be highly suspicious / obvious benchmaxxing / obviously bad benchmarks.
anthropic really needs something to address the cheaper end of the market before they get left behind. Sonnet 5 sucks, and Haiku hasn't been updated in a year. meanwhile we've got gemini flash, luna, and GLM5.3 all delivering 90% of the performance for a small fraction of the cost. paying $25/mTok is going to start looking pretty silly soon.
Gemini Flash is also pretty cheap, so it's a great family for performing media analysis, like extracting structured data from images and video.
We transcode everything to 480p before we send it to Gemini batch api. Works great
Here are the 3.7 pelicans for comparison: https://tools.simonwillison.net/markdown-svg-renderer.html?u... - high cost 8.4387 cents
(I think thinking level low is a regression on 3.8 compared to 3.7.)
> https://tools.simonwillison.net/markdown-svg-renderer?url=ht...
> Took just under 14 minutes to generate, and at 65927 output tokens cost me a hefty $3.30!
So 50x cheaper - and how much faster?
Edit: scrolled down to medium effort, its better but also has a weird clipping issue with the fish in the beak.
I like the benchmark. Yes, it's near saturation for SotA models, but still quite good to show where smaller models stand in relation to SotA
In this instance, I see a great image, but consistently clipping mudguards (both in 3.8 flash and 3.7 flash)
(Next up is the comment saying that the labs are clearly training for the benchmark.)
I eagerly wait more info but sounds like Deepmind without Demis calling the shots has been unleashed and are operating at full speed? Shocker!
At this point it is a meme of course, but where is 3.5 Pro :)
https://x.com/AndrewCurran_/status/2094937419615502370
But, also... Sol crushes Flash 3.7 at writing code in a codebase of any size beyond "tiny".
Flash is my go-to for prototyping, and basically anything that isn't writing production code.
edit: I have a subscription; direct call.
Lots of models seem to just allow the model to "bloatmax" tokens in order to get bumps at high/max reasoning levels. Many of the max reasoning levels allow models to use up to double or more the tokens the next lowest reasoning level uses. Its basically only useful for people who have no cost or time stipulations on anything.
I think I actually preferred it when we had models that either had reasoning enabled or didn't.
Kind of wild that they haven't (successfully) pretrained a base model since Jan-25.
That said, I do trust Opus and Fable enough to let them deploy to staging. Great for debugging. Just don't give them keys for prod
My experience is that antigravity is awful and reckless - but that the model itself isn't.
Unless they have an even more powerful Gemini Pro in the oven...?
3.0 flash -> 3.8 flash is all post training which is pretty impressive.
Is this weakness in their training regimen the impact of operating under regulatory frameworks for too long?
But it's bad at code reviews (maybe it's the harness agy cli?). Could not get it to same quality level on reviews like Opus, GPT 5.6, Grok. Even tried special code review skills but no luck.
I also used it for a an app for my Garmin watch, and it wasn't good. The code was compiling, but functionality was totally broken and even with a lot of steering it wasn't able to make it work. GLM 5.3-flash instead was up for it and the code wasn't bad at all. I am curious to see if 3.8 is an improvement in this use case.
(I guess the only relevance here is that if your problem matches a model's strengths, then you can do fine with a model that is several generations out of date.)
- Flash-Lite
- 3.6 Flash [new]
- 3.1 Pro
The above is why i don't use LLM products from Google. If the model is not available right this minute (heck, hours before the release!), then I'm not gonna bother getting back to it tomorrow, because tomorrow I'll be playing with the new model from OAI/Anthropic.
So frustrating and confusing.
Meanwhile Anthropic and OpenAI simply release a model everywhere (Fable on Pro only as a somewhat mild exception).
Anytime anything gets added to Workspace, I think Google has a lot more contractual obligations about keeping it around for X amount of time, so they tend to be more careful about adding things.
Same and I have found it extremely annoying. I actually really like the Gemini models for question/answer stuff and reach for it before Claude (the other model family I have purchased) but it's getting long in the tooth at this point and I'm finding my Gemini usage shrinking to nearly 0.
(It also shows that the internet isn't dead. Even people who are not aware of Google AI Studio can express their valuable opinions on LLMs!)
AI Studio? Seriously, the hell is that? Gemini, AI Studio, Antigravity - what is all that nonsense? The 3.8 Flash announcement says the model is available to Google AI Pro customers. Is it the same as Gemini Pro, or some sort of AI Studio Pro? Based on the comments, i see the model is available in the Gemini App, not available in the UI, not available to Workspace accounts but is available to some personal accounts, yet I'm not a Workspace user. Some people have already mentioned that they are paid customers, yet they don't see the new model.
I know Google loves asking graph problems during their tech interviews, but I can't wrap my head why the customers should solve these problems as well.
but the webui is currently offering 3.6 flash. the previous model still hasn't actually rolled out to it yet.
It's available in antigravity which I started using again (for small things until I can trust gemini for coding again).
But yeah, they really dgaf about gemini.google.com -- I dropped that sub in April when it was clear OAI and Anthropic had lapped them
I have a weird vibe from all the comments in this thread, they feel like a script rather a real experience.
Serving more models also adds a significant ops burden on the SREs and trust& safety teams.
The reality is that if you optimise a harness for a family of tasks[1], then most of these models give successful output. And there, gemini flash's speed shines.
For general coding assistant, you want it to be well, general, and you use a harness without too much customisation to something specific. Here you need deeply post trained coding assistants and implementors like codex/sol or claude/opus. Gemini flash in its current form will be too happy-go-lucky if you try using it the way we all use codex and is better used in a constrained setting.
tl;dr gemini flash for "LLM-aided workflows in production" is super good today. Cheap as well.
[1] Stuff like this: https://antigravity.google/blog/teamwork-when-ai-becomes-a-r...
https://hamel.dev/notes/llm/evals/
In all seriousness, gemini has the best interactive planning document/orchestration. Tell it to create a plan document and work through it with it and it will preform really well(in antigravity products). But this is the case with plan modes with every model, I just think the interactive document that antigravity uses is really well thought out.
If I had to pay per token I would probably consider using this (they seem to be on the pareto of performance) but not being able to use opencode with a subscription is not really something I'm realistically going to do when claude and codex are around. Also never gotten along well with gemini-cli / antigravity-cli.
I tested Gemini CLI while ago, and it was awful tbh.
https://developers.googleblog.com/an-important-update-transi...
Why bother with a column “Gemini 3.8 Flash vs. Gemini 3.7 Flash” when you’re going to disregard the label for 20% of it? Also is the “Tone” label short for “Tone and Instruction Following”?
Chartcrime, the major AI lab tradition.
They're apparently evolving slower than most SOTA models but "slow and steady wins the race" is probably still a thing.
And since Google doesn't depend exclusively on AI models, they can probably afford to "wait and see" where all this craze is heading.
Almost suspect that the rate of improvement to post-training is so fast that small models have an advantage - it takes much more compute to train a bigger model, so the flash models are just running in circles (well, not exactly of course) around the larger models right now.
3.7 used 64M on high: https://artificialanalysis.ai/models/gemini-3-7-flash 3.8 used 120M on high: https://artificialanalysis.ai/models/gemini-3-8-flash
Even their own chart showed more than 2x higher cost compared to 3.7: https://storage.googleapis.com/gweb-uniblog-publish-prod/ima...
https://x.com/OfficialLoganK/status/2079594867161022817
Yesterday I asked for food stop on my road trip 45 minutes from the current time and it gave me some options, but then I changed my mind and specifically asked for Asian restaurants and it completely forgot about the 45 minutes and gave me the closest Asian restaurant to me.
And in my other app I was debugging and using OpenAI to optimize some path it cut me off numerous times because it did not like JIT functionality (this is my commercial business rule evaluation engine that compiles rules to executable code inside the app to increase performance using asmjit library)
I am basically paying for them to waste my tokens and time on these 2 tasks
But a good agents.md, starting from a clean slate, and specifying which key files to look into and follow the standards allows me to build gigantic projects even I struggle to keep in my head structurally.
I would say either start new sessions for new tasks or limit the context to something smaller than 1M.
I usually start with research/planning session, this goes into a detailed implementation plan and then a new session for the actual implementation.
If it's complex problem maybe a review/adversarial step between plan and implementation.
Also with forever-session any time you take a longer break (depends on model and provider as to how long) you will push an entire big context again without caching even if you don't need it. With 1M context this gets expensive.
So just another mid-tier flash model, nothing exciting, but Antigravity has very generous quotas so it's a good workhorse model when your Claude/OpenAI subs run out.
And whilst it's a fast model, having to baby sit through and approve prompts every few seconds ends up making it slower than the Auto approve modes of Claude/ChatGPT - they definitely need an auto approve mode.
My guess is we skip 3.5 and go straight to 4 Pro. With the monthly Flash releases, releasing 4.0 Flash and Pro in 6-8 weeks would be a nice buildup.
(I work at Google but don't know anything that isn't already public)
A recent example - I searched for how to unsubscribe from Pearson emails. Google Search "AI Mode" confidently gave me a sequence of steps along the lines of Settings > Profile > Email preferences > Unsubscribe.
Of course, I looked for an unsubscribe link before asking Google. None of those options existed. The correct answer was there is no way to unsubscribe through the account, so I just blockthe emails instead.
I've run into this pattern quite a few times. AI Mode seems to make up things all the time.
>We will not send marketing emails to a user who has opted out of receiving them. Any marketing communications we send will include an unsubscribe link at the end of the email.
I don't think this is AI's fault. This is Pearson's publishing incorrect information and the only way to really know they are a bunch of lying assholes is to have an account and try to unsubscribe from it.
AI didn't make it up, Pearson's did.
It's obvious that the Google Search AI Mode encourages the model to give an answer without spending unnecessary cycles investigating deeply.
They also heavily encourage keeping the context short. For example, it will remove the option to start a new turn after a small number of turns, depending on the topic.
It definitely makes things up all the time, but it gets it right surprisingly often. I really like it.
Are you people truly this excited about this crap? I mean I guess if you work for Google or Anthropic or whatever I could see it??? Otherwise, are these just bot comments?
Also, I use it every day, and it just got ~10% better at coding, according to the benchmarks. How is that not exciting?
A lot of us use these in our services, so we're getting an upgrade "for free"
I'll wait for Astra and Grok 4.7 announcements but probably getting at least one Ultra subscription.
Since testing 3.7 on Pro for last two weeks I'm realizing just how long I'm waiting on other models. I've been multitasking to compensate but it's exhausting so I'd rather not.