What will GPT-5's context size be? (2025)
What will GPT-5's context size be? (2025)
90
6.1kṀ36k
2026
0%
0
0.1%
2k
2%
4k
0%
8k
0%
16k
0%
32k
1.5%
64k
29%
128k
22%
256k
11%
512k
15%
1024k
8%
2048k
12%
4096k

When OpenAI announces GPT-5, this market resolves to the largest context size measured in tokens that they announce support for.

GPT-3: 2048 tokens

GPT-3.5: 4096

GPT-4: 8k, 32k

GPT-5: ???

Anthropic's Claude announced a 100k variant, there are rumors of upcoming 1 million context size models, and surely OpenAI would want the most impressive-sounding model on release.

In the unexpected case they don't mention a specific context size or their architecture is changed so fixed context sizes no longer make sense, I'll wait until I have access and test its recall using very large documents.

If the largest context size isn't on this table, then this market resolves to a weighting of the surrounding entries. k is a multiplier of size 1024. GPT-4 would resolve "32k". Claude would resolve "log2(100k) = 16.61, so 2^16 = 64k would get weight 39% and 2^17 = 128k would get weight 61%".

Get
Ṁ1,000
to start trading!


Sort by:
bought Ṁ20 YES1mo

non-GDM companies have been surprisingly slow to adopt long context. I think it will happen soon-ish but it's not a top priority.

bought Ṁ1,000 NO9mo

Wild that 4k is still at 3%.

reposted 10mo

Google Gemini is 2 million tokens already, with tests up to 10 million. If OpenAI competes with Google, I might have needed more levels on my scale...

It resolves 100% 4096k(4 million) no matter how larger the final context is, since I can't add options.

@Gen Is it possible to admin add levels to this? 8192k and 16384k would be nice to have. Anything larger would be basically infinite. The context sizes grew faster than I expected.

1y

There's now a standard test suite for the kind of recall test I was thinking of doing: How Long Can Open-Source LLMs Truly Promise on Context Length? | LMSYS Org

Leaving it as a comment here so I can remember to find it again in 2 years, if it's needed.

1y

This should be a higher/lower market with a log scale IMO

1y

@ShadowyZephyr This is an intentional choice because it allows higher leverage if you have a strong opinion on a narrow numerical range.

@Mira I heard from other people that the math of the multi-choice markets is not good for compensating people who make correct bets early on.

1y

@ShadowyZephyr I would disagree with them, but I usually don't debate people. You can bet on @firstuserhere 's binary markets if you like, since I stole his market idea for this.

1y

By testing recall, how would that work for an RNN, having theoretically infinite context

1y

@dmayhem93 It would resolve to the largest entry if it can pass the test at any size without errors, in a single API call.

If it has an increasing error rate like RNNs often do, I'll resolve to the highest size I get at least 50% successful recall.

It will be a simple "locate a matching entry" task, so even if its performance degrades for more complex reasoning it's likely to be able to pass as having a high context size.

What is this?

What is Manifold?
Manifold is the world's largest social prediction market.
Get accurate real-time odds on politics, tech, sports, and more.
Or create your own play-money betting market on any question you care about.
Are our predictions accurate?
Yes! Manifold is very well calibrated, with forecasts on average within 4 percentage points of the true probability. Our probabilities are created by users buying and selling shares of a market.
In the 2022 US midterm elections, we outperformed all other prediction market platforms and were in line with FiveThirtyEight’s performance. Many people who don't like betting still use Manifold to get reliable news.
ṀWhy use play money?
Mana (Ṁ) is the play-money currency used to bet on Manifold. It cannot be converted to cash. All users start with Ṁ1,000 for free.
Play money means it's much easier for anyone anywhere in the world to get started and try out forecasting without any risk. It also means there's more freedom to create and bet on any type of question.
© Manifold Markets, Inc.Terms + Mana-only TermsPrivacyRules