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Posted by Topfi 15 hours ago

GPT-5.6 Sol Pricing Cut by 50%(openrouter.ai)
495 points | 308 commentspage 3
drivebyhooting 9 hours ago|
Has anyone had mixed experience running Ultra with and without /goal? I come back to it after 8 hours to find it got stuck navel gazing imagined and Byzantine errors.
ardel95 3 hours ago||
My bet is that OpenRouter began steering GPT-5.6-sol users towards flex tier, which is already 50% off.

So this isn’t really a price cut. As to why, lots of possible reasons. Perhaps an agreement with OpenAI to help them drive up more diverse traffic priorities.

josh-wrale 12 hours ago||
Is this motivated by the value of the thinking traces gleaned from the traffic?
killingtime74 10 hours ago||
The thinking traces are server-side, not exposed
ec109685 11 hours ago||
They can’t decrypt the thinking traces.
dannyw 9 hours ago||
You can train a LLM to inverse summarised thinking into thinking text. It’s not perfect, but it gets you maybe 80% of the quality with proper techniques.

Paper: https://arxiv.org/abs/2603.07267

FWIW, there’s not that much value protected here anyway IMHO, and even raw thinking text can lie (as shown by Anthropic’s amazing research), so for legitimate interpretability research it’s limited.

Scaling frontier performance hasn’t been SFT-bounded for a while now; it’s now basically how much you can scale RL rollouts.

OutOfHere 12 hours ago||
The title looks to be misleading, since this price cut is limited to OpenRouter. It does not apply for the native OpenAI price listed at https://developers.openai.com/api/docs/models/gpt-5.6-sol
jrflo 10 hours ago||
Yes, and it's only for a month. This is an ad.
paxys 12 hours ago|||
Which raises the question - who is subsidizing this, and why?
internetter 11 hours ago|||
Possibly OAI? If you have OAI tokens you are a captive audience. If you have OpenRouter you are bidding on a free market.

OpenRouter attributes this promotion to OpenAI https://x.com/OpenRouter/status/2089416739398254662

maxnevermind 6 hours ago|||
Why though, to AB test/see the impact of a price cut on a platform with multiple competitors?
paxys 10 hours ago|||
Is this captive audience not going to switch providers for a 50% discount? Especially when the effort is simply swapping one URL for another?
OutOfHere 11 hours ago|||
OpenRouter is likely just leveraging Codex subscriptions.
prime_ursid 10 hours ago||
Wouldn’t that be against TOS?
OutOfHere 9 hours ago||
It might be through a level of indirection via an intermediate provider, offloading the TOS issue to the intermediate provider who couldn't care less.
matchagaucho 11 hours ago|||
Right? Should we switch from direct OpenAI API integration to OpenRouter?

What's the incentive here?

Open Responses API doesn't appear to support state management (yet)

user43928 5 hours ago|||
OpenRouter and the Vercel AI Gateway.

So yes, presumably a very small share of their total traffic.

baimoqilin 10 hours ago||
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lyjackal 11 hours ago||
I saw this for Luna and then looked at the uptime and it said 85%. My interpretation is that this is just a gimmick where they serve the OpenAI flex tier at the same discount OpenAI provides for flex and then fall back to azure
tartakovsky 11 hours ago||
No ZDR. No dice.
therepanic 9 hours ago||
Even at these prices, switching from subsidized subscriptions to the API just isn't worth it. Not even close.
hk__2 4 hours ago||
In my experience, "Sol" stands for "Stupid overengineering LLM". I’ve tried it at low/medium/high/xhigh effort levels and after a while I always end up to regretting my switch from Opus/Fable.
jeffybefffy519 8 hours ago|
Reading the comments in this thread, i honestly dont get it. 5.6-sol has felt like a regression in capability. In fact, every model since 5.3-codex has been a regression from OpenAI. I just find 5.6-Sol over engineers problems, takes absolutely ages to solve basic problems....

At this point, I'm considering going back to cursor over codex due to the ability to get more control over what model I use since there is clearly a heap of user preference and having frontier providers constantly shift the goal post with "State of the Art" is complete non-sense.

jeswin 8 hours ago||
It depends on what effort you're using etc. As an example [1] of what codex is capable of, here's hugo (written in golang) ported to TypeScript - and then a TypeScript to Rust transpiler which converts arbitrary TypeScript into Rust.

The TypeScript code which was transpiled into Rust (and is compatible with most hugo templates) runs faster than the original hugo.

[1]: https://github.com/tsoniclang/tsonic-examples/tree/main/rust...

The transpiler is still WIP, but the fact that it can do this says a lot of about how far LLMs have come.

jeffybefffy519 2 hours ago||
I find all effort levels of sol are the same in terms of amount of hallucinated unnecessary changes. Luna is much better all round on xhigh but my point still stands, every release of these new models is not an upgrade, its re-learning how to work with it.

Its like rehiring an employee every few months then training them up. Its honestly tiring and cant stay like this.

Opus has the same problem too…

jeswin 2 hours ago||
That's not been my experience. My prompting methods haven't changed much between recent GPT releases. I do put a lot of effort into building tooling and tests around a project, so the LLM output is converging around it.
jeffybefffy519 2 hours ago||
Can you give examples of the tooling and tests?
jeswin 2 minutes ago||
Sure.

This is the csharp target for tsonic. It has a bunch of tests here: https://github.com/tsoniclang/tsonic-csharp/tree/main/test

More comprehensive e2e proving grounds are at

1: https://github.com/tsoniclang/proof-is-in-the-pudding

2: https://github.com/tsoniclang/tsumo/

They were built specifically for testing the C# target. There are several other large projects we built specifically for e2e testing.

But the more interesting thing would be the tooling built to support this. For example, our current TypeScript parser [1] is a file-by-file port of Microsoft's TypeScript V7 compiler written in golang. The challenge here is that every time Microsoft changes code, we'll have to fix our code and tests. It's doable, but a fair amount of work.

So we decided to write tooling to transpile Microsoft's v7 compiler from golang, and autogenerate our compiler. That tool is called gotots [2] - and it already produces a fully working TypeScript compiler. It's 3x slower than TypeScript v6 compiler, but we hope to get to rough performance parity in a week or so. Everytime Microsoft makes an update, we run gotots and our parser gets updated as well.

[1]: The old parser - https://github.com/tsoniclang/tsts-legacy

[2]: Golang to TypeScript transpiler - https://github.com/tsoniclang/gotots

tonyhart7 8 hours ago|||
its over engineered problem solver ???? well because its a designed to do that

if you want to solve basic problem then use Luna

jeffybefffy519 2 hours ago||
I mean it added additional changes when it doesnt need to. Its basically hallucinating changes it thinks it needs to make regardless of effort levels i try.
SadErn 8 hours ago||
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