This model was released as a "stealth model" in OpenCode Go for a while as "Space Bunny" (they mention this in the blog). So people have been using without knowing what the model was exactly, but it failed to impress anyone as far as I can tell. This is despite the model being served for free (with some asterisks). GLM 5.3 Flash and DeepSeek V4.1 Flash, even before last week's update, seemed to be much preferred. Stealth releases happen often with OpenCode subscriptions, and GLM 5.3 Flash (stealth name "Ox Alpha") impressed a lot for example.
The perverse incentives around benchmarks are now so bad that benchmark scores are effectively meaningless. Models can score highly and still be crap to use. It doesn't matter whether it's Minimax or Google, or anyone really.
Claude sub has a 60x subsidy, so a $20 sub gives you $1200 in API.
Based on this math, Claude sub is a much better deal than Deepseek. And it's a stronger model of course.
This is only true if you max out the plan, which requires working around awkward 5-hour and weekly limits. For side projects, sure, you can use a Ralph loop or whatever and just continue when the window resets. For work, I can't afford to simply stop working when I hit my limit. And using Claude at API prices is prohibitively expensive.
Personally, I have a $20/month OpenAI subscription that I supplement with DeepSeek V4.1 Flash (currently using CoralBricks as the provider since it's fast and I'm grandfathered into their $0 cache read pricing). It's working out rather well so far. Even when I use DS all day as my primary model, I only pay about $1/day, which is roughly equivalent to what I pay for the sub anyway (but with no limits).
If I was to do anywhere near that kind of work on Anthropic, I'd find myself running out of tokens, waiting days to continue working, and leaning on their el-crap models to try to avoid running out again. This happens all the time.
This way I get to leverage DS for nearly all my work, benefit from its far superior latencies, and I still get to lean on OpenAPI / Anthropic or whatever SOTA models I want when I need them.
The only time that really falls down is if I'm doing huge amounts of real novel work, which hasn't been the case for a while.
I use OpenCode at home, this is one of the reasons.
Their Ember-1 model (Kimi K3 tuned to think less) hallucinates to high hell, I have no trust of it, nowhere to provide feedback, despite their launch post saying they would like feedback. That they loudly and proudly claim their internal devs notice no difference is a huge red flag for me. It says there is too much eyes free coding, I noticed the hallucinations and false claims of task completion immediately.
For some reason it just creeps me out knowing that someone is recording me and reading my conversations.
I'm a heavy Claude/anthropic user, I max out my 20x max plan in 1-2 days at this point. The OpenCode Go $40 plan with DeepSeek flash is like 2x the value of the Claude max 20x plan for how much I actually get out of it, for 1/5 the price.
DeepSeek literally like 10x better value than Claude/Anthropic.
DeepSeek is really cheap when you compare API pricing, but it's more expensive than a subsidized Anthropic or OpenAI subscription.
As a prospective user, none of of the benchmarks details will matter to you, but the family of models and settings they peg themselves against can give you a hint of where you might want to evaluate them within your own workflows.
As an enthusiast or lay researcher, the more interesting thing is to look at their techniques and any innovations they're exploring in training, inference, etc. Those are usually going to be details tucked below the fold and won't be summarized in a benchmark chart.
As anybody else, why do you even care about this in the first place?
This doesn't just apply to AI. You should know better than to take marketing announcements at face value, nor trust that most "influencers" or "journalists" or "commenter" repeating and discussing those announcements are doing a lot of work as they buzz over what's said.
Don't be a victim to PR spin, but also don't discount potentially interesting work just because it got channeled through a marketing team. Just look for the information you need amidst the noise or move on if there's none there.
For example, here you see they are comparing against Opus 5 and GPT-5.6 Sol, when Opus 5.5, Sonnet 5.5, GPT-6 Astra, and GPT-6.1 Sol would be the latest SOTA models from those labs to compare against.
Also because a lab's own benchmarks tend to run about 6.4% better than third party runs of the same benchmark. Source: https://whatmodel.sh/claims This can happen due to a number of factors, and doesn't necessarily indicate anything nefarious. It could just be that they run multiple times while fixing issues that aren't related to the model, and have a selection bias towards stopping when the score is on the higher side. But since you see that sometimes their own scores are lower than the independent runs, some of the variation is explained just by variance in the model solving problems, since LLMs are nondeterministic there can be variation from run to run and you don't see labs always cheating, just potentially a bit of selection bias about when they stop tweaking their benchmark setup and publish the results.
And yes, there are independent third party runs of benchmarks for just this reason. The most popular with broad coverage of a range of benchmarks is https://artificialanalysis.ai/ but there are a number of others as well.
Being pedantic - LLMs are deterministic software, that is chaotic and typically deployed with a PRNG seed. An LLM ran using the same seed will produce the same output consistently (theoretically - in practice this isn’t always the case because of changing factors wrt the execution environment given how sensitive/chaotic models are).
It's never "cheaper and faster and more intelligent", it's pick 2. Sometimes (as was the case this month), it was "cheaper per token, but reasons five times as much", so your costs go up.
So, I can quickly judge that this is an interesting option only if cheaper or faster than DeepSeek.
Based on Terminal Bench 4.0, I'd also guesstimate behind GPT 5.6 Sol, so of course behind the SOTA as expected.
If you are doing coding only then official benchmarks are mostly right, but as many people are starting to do for instance marketing work with LLMs now there’s very little correlation between coding and creativity for instance.
And often they also don't mention how verbose it is, that the same text splits into more tokens than in competing models, how slow it is, that the pricing is temporary, that the cost per task actually isn't that good despite being both cheap and capable.
Edit: You removed model names ig
For this release, the cost is $0.15 input MToK/$0.60 output MTok/$0.015 cache read MTok, In this case the predecessor is MiniMax M3 (not Flash), which was $0.30 input MToK/$1.20 output MTok/$0.06 cache read MTok. So a 50% cut to input costs and a 50% proportional cut to cache read costs (20% of input -> 10% of input) makes the ~70% cost reduction plausible.
A 70% cost reduction is very funny in light of reports saying LLMs are becoming too expensive. That is likely due to the need to compete with DeepSeek V4.1 ($0.15 input MToK/$0.60 output MTok/$0.003 cache read MTok), which this new model still does not beat because DeepSeek's cache costs are still confusingly low, but it's pretty close.
The really expensive part of inference - the compute and memory traffic required to perform prompt processing and decode - is paid for roughly once per token in a multi-turn session when prompt caching is working properly.
The difference to the provider's costs between:
- Submitting 100 back-to-back requests, each adding 1k tokens to the context
- Submitting 1 100k token context request
Is negligible. Yet the consumer is going to pay a lot more in the former case for all those repeatedly submitted input tokens that you get charged the cached rate for (but which required no additional compute on the provider side).
DeepSeek V4.1 has an insanely optimized KV-cache that takes around 900MB per million tokens, making it feasible to move to disk between requests. Makes sense they're cheap
Which is roughly similar to deepseek 4.1 flash.
I find it interesting that we’re calling these “flash” models now, even though they aren’t “small or light” and in many cases aren’t particularly that fast.
I suppose it’s more so that the standard for “regular models” is becoming 1T+
- DeepSeek V4 Flash: 284B / 13B active MoE
- DeepSeek V4 Pro: 1.6T / 49B active MoE
- DeepSeek V4.1 Flash: 552B / 8B input, 16B output MoE
20 t/s is about the speed you can read at, so slower than that and it always feels like it's buffering. 35 t/s is where it starts feeling decent and 50 t/s feels nice.
13 TPS is unusable for agentic coding, because if decode is that slow, then prefill is absolutely abysmal, and agentic work live and die by prefill speeds.
Why wouldn't I want the smartest possible model I can get? I only "chat" about smart person stuff.
If you have 200k context, but only 200t/s prefill, then you’ll wait multiple minutes when continuing an average session from yesterday. Or compaction - might take 15 minutes.
And no new releases from Chinese labs likely means their models that they could compare against those models are still baking largely because they lack compute so severely they need to train models for far longer, or figure out training on Chinese hardware.
Either way it's clear open models a lagging by ~1-2 months compare to frontier, depending on what frontier means to a person. Honestly most new models are just not that much better than at edge cases, they still fail a lot for the kind of stuff I do, but those edge cases matter a lot for un-interrupted long horizon work.
I personally am starting to see a wall here in llm development but that might just be me, given that people are being forced to scale models up considerably for frontier performance.
It's scary thinking that modern models will likely be at best 2-3% better in benchmarks or only useful in 1-2 unique edge cases compared to base models for 100x cost increase in compute required, it's getting absurd.
I can't imagine how Fable models can retain any value once you have to go 100x larger, while 27-32B models start to catch up to the current frontier for coding or other narrow/focused tasks in a year or so.
Lots of synthetic data, distilled data etc.
The problem is if we can pack a Fable in Qwen 4 27B who will pay subscription prices?
I fully expect that we will see increased performance from smaller architectures (to a point) simply because they are refined using larger ones.
> The problem is if we can pack a Fable in Qwen 4 27B who will pay subscription prices?
This is available to everyone developing these systems. Prices per relative unit of intelligence will continue to decrease. And market economics will continue to drive the cost down.
Ala intelligence is a function of compute, there was no guarantee that you need to 10x compute for 10% better performance or something like that.
If you ask the labs they will say the scaling is fairly linear or atleast sub-quadratic, they definitely won't say it's exponential.
No one was thinking we need to 10x compute from here again for another 10-20% increase in performance.
It's only been since Opus 4.6 that the compute growth vs improvements are starting to feel this way.
For instance GPT-3 vs GPT-4 was practically a 10-100x jump for a 10-100x increase in compute, we went from broken sentences to fully formed essays writing, speech and so on.
GPT-4 vs GPT-5 was just as massive we went from no agentic capabilities to fully agentic, 10-100x for a 10-100x increase in compute usage.
GPT-5 vs GPT-6 was atleast a 10x (upto 100x) increase in compute, but the difference is not that clear sure people say that one is significantly better than the other, but GPT-5.5 was good enough compared to where we are today.
Even on benchmarks compared to GPT-5.2 Codex we have almost 2x'ed the performance on say artificial analysis (53 vs 29). This is absurd. 10-100x increase in compute for 2-5x performance improvement is a massive gap.
[1]: https://bitterlesson.ai/ [2]: https://artificialanalysis.ai/?models=gpt-6-astra%2Cgpt-6-lu...
https://artificialanalysis.ai/models/comparisons/mimo-v2-6-p...
For me, the DeepSeek 4.1 models are currently the ultimate cost-effective model the rest have to match with, especially if you are not on a subscription plan with heavy discount.
GPT Sol 6.1 is however, for me the most efficient model, both in terms of time to finish and token usage.
I haven't tried this model yet but Deepseek and the GLM 5.3 series do feel like "enough" for a lot of tasks, it's pretty amazing to see that we're still getting better and cheaper models all the time.
I only wished they would focus more on wall clock time. For a hobby project I do not mind that a cheaper model takes twice as long but at work it's hard to justify using a "cheaper" model if the time per task is so much higher than the frontier models.
The amount of time that it took to complete a benchmark is almost never shown in these kind of releases.
It actually hasn't, it seems: https://news.ycombinator.com/item?id=50151775
Obviously your marketing team is going to use the Pareto frontier where your model has improved the most and compares favorably against competitors.
They mention that space bunny was an earlier checkpoints, so it may have improved (or may it could be benchmaxxed)
I find it interesting that so many models seem to be at almost exactly 74% specifically which makes me suspicious of the benchmark. I want to say 5.6-sol, Astra, deepseek flash 4.1, opus 5 (and 5.5?), Gemini 3.8-flash and a few others all ended up there?
H3, on the other hand, is phenomenal
Unless they come in at half the price (which I think will be impossible) on inference ... they have wasted their training compute imho.
Ask HN: Any guesses on which model/provider is Space Bunny Alpha on OpenRouter? - https://news.ycombinator.com/item?id=49898971 - Sept 2026 (1 comment)
https://news.ycombinator.com/item?id=50151561
https://news.ycombinator.com/item?id=50151576
https://news.ycombinator.com/item?id=50153196
The solution is for @dang to unshadowban it because Minimax is now a newsworthy company.
Then maybe they can be merged once one gains a comment?