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  5. GPT OSS 20BvsHy4 Preview
Updated Aug 2026

GPT OSS 20BvsHy4 Preview

GPT OSS 20B is cheaper than Hy4 Preview at $0.02/M vs $0.834/M input tokens.

GPT OSS 20B and Hy4 Preview compared across 53 shared prompts
SpecGPT OSS 20BHy4 Preview
Input price$0.02/M tokens$0.834/M tokens
Output price$0.1/M tokens$2.501/M tokens
Context window131K tokens1.0M tokens
WeightsOpen—
Free API (OpenRouter)NoNo
ReleasedAug 2025Aug 2026
Side by side

Same prompt, both answers

Opening lines from 6 of the 53 prompts both answered. Formatting stripped, words untouched.

Futuristic Prediction

Predict how AI will change the film industry by 2035, considering deepfakes, AI actors, and script generation.

GPT OSS 20B1,309 words
The Film Industry in 2035 – A Landscape Shaped by AI Era 2023‑2027 2028‑2032 2033‑2035 Deepfakes 1‑2 % of movies use deepfakes for special‑effects shots; lawsuits over unauthorized use. Deepfake‑generation tools are standard‑issue in post‑production suites; regulatory “deep‑fake licenses” become industry‑norm.
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Hy4 Preview924 words
By 2035, the film industry will likely have moved past the initial "shock and awe" phase of Generative AI and entered an era of synthetic realism. The technology will not have replaced the film industry, but it will have fundamentally dismantled the traditional studio system, shifting power to individual creators and…
Read the full answer

Historical Counterfactual Analysis

If the transistor had been invented in 1920 instead of 1947, trace the likely technological, economic, and geopolitical implications through…

GPT OSS 20B1,997 words
What would a 1920 transistor mean? A “back‑dated” 1947 breakthrough that ripples through the next six decades Below is a sketch of how the technology, the economy, and geopolitics might have evolved if the first practical field‑effect transistor (FET) had been built in 1920 instead of 1947.
Read the full answer
Hy4 Preview1,253 words
This is a counterfactual scenario of massive proportions. The transistor is the fundamental building block of the modern world; moving its invention from Bell Labs in 1947 to 1920 (perhaps an accidental discovery during early radio research) grants humanity an extra 27 years of development during a period defined by…
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Character Voice Test

Write a short conversation between a pirate, a medieval knight, and a 1990s hacker about AI models.

GPT OSS 20B267 words
Pirate: "Arrr, lads! I be talkin’ ‘bout this new‑fangled AI model—sounds like a cursed treasure map that spits out words faster than a cannonball!" Knight: "Sir — I beseech thee, speak plain. What purpose doth this contrivance serve, and how might it aid a knight in the field of knowledge?" Hacker: "Yo, fam.
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Hy4 Preview440 words
Setting: A dimly lit tavern called The Syntax Error. PIRATE: (Slamming a tankard of grog on the table) Arrr, me hearties! I hear tell of this new "AI" beastie. Is it like a kraken? Can ye make it swab the deck or find me buried treasure? KNIGHT: (Polishing his visor with a gauntlet) Nay, pirate.
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Simple 7-Ingredient Recipe

Create a simple recipe for a delicious dish (sweet or savory) using only 7 common pantry ingredients. Include a creative name for the dish…

GPT OSS 20B254 words
Pantry Pasta Bliss A quick, creamy, and comforting dish that turns everyday pantry staples into a satisfying meal. Ingredients (7 items) 8 oz spaghetti (or any pasta you have on hand) 2 Tbsp olive oil 3 cloves garlic, minced 1 (14.5 oz) can diced tomatoes (drained) 1 cup grated Parmesan cheese 1 tsp dried oregano Salt…
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Hy4 Preview303 words
Here is a recipe for a savory, comforting dish that requires minimal effort but tastes like it came from a restaurant. Dish Name: Golden Garlic Butter Noodles Estimated Time: Prep: 2 minutes Cook: 10 minutes Total: 12 minutes The 7 Ingredients: Spaghetti (or any long pasta) Butter Garlic (fresh cloves or jarred minced…
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Estimate Complexity

Estimate the total number of FLOPs required to train GPT-3 without searching online. Explain your reasoning step by step.

GPT OSS 20B637 words
Below is a step‑by‑step, “hand‑calculation” of how many floating‑point operations (FLOPs) GPT‑3 had to do to learn from its training data. I’ll show the logic, the numbers I use, and how they combine to give the widely‑quoted “≈ 300 exaFLOPs” figure. (All the math can be done in a spreadsheet or a simple calculator.)
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Hy4 Preview627 words
Here is the step-by-step estimation for the total number of Floating Point Operations (FLOPs) required to train GPT-3. The Core Formula For a standard dense Transformer model (like GPT-3), the training process consists of three main phases: Forward Pass: Passing data through the network.
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Debug This Architecture

Here's the architecture for a real-time collaborative document editor (like Google Docs): **System Overview:** - Frontend: React SPA with…

GPT OSS 20B1,577 words
Below is a “code‑review” of the design you posted. I’ve broken it down into failure modes / race conditions / bottlenecks and for each one I provide a concrete fix (or set of fixes) together with the main trade‑offs you’ll pay for it.
Read the full answer
Hy4 Preview1,028 words
This architecture contains several critical flaws that will lead to data loss, poor user experience, and security vulnerabilities. While it attempts to solve scaling via horizontal scaling, the synchronization strategy (Last-Write-Wins) and the transport mechanism (HTTP polling between servers) are fundamentally…
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Our Verdict
Hy4 Preview
Hy4 Preview
GPT OSS 20B
GPT OSS 20BRunner-up

Not enough votes to call it. On the specs, Hy4 Preview has the edge: bigger model tier, newer, bigger context window.

GPT OSS 20B costs 25x less per token.

Too close to call

Reviewing agent-written code?See a Brief PR report

API pricing

Cost per 1M tokens

GPT OSS 20B
Input
$0.02
42× cheaper
Output
$0.10
25× cheaper
Hy4 Preview
Input
$0.83
Output
$2.50

GPT OSS 20B is cheaper on both: 42× input, 25× output.

Where to run it

14 hosts, cheapest first

GPT OSS 20B13 hosts
HostInOutContextUptime
AAkashMLfp4$0.02 in·$0.10 out·131k·99.5% upDDarkbloomfp8$0.02 in·$0.10 out·131k·98.9% upDDekaLLMbf16$0.03 in·$0.14 out·131k·99.7% upCCoreWeavefp4$0.03 in·$0.13 out·131k·100% upDDeepInfrabf16$0.03 in·$0.14 out·131k·99.9% upPParasailfp4$0.03 in·$0.15 out·131k·99.9% up
7 more hostsFewer hosts
NNovitafp4$0.04 in·$0.15 out·131k·99.7% upPPhala$0.04 in·$0.15 out·131k·99.2% upSSiliconFlowfp8$0.04 in·$0.18 out·131k·95.7% upTTogether$0.05 in·$0.20 out·131k·42.5% upAmazon Bedrock$0.07 in·$0.15 out·131k·98.4% upGoogle Vertex AI$0.07 in·$0.25 out·131k·99.4% upGroq$0.07 in·$0.30 out·131k·99.7% up
Hy4 Preview1 host
HostInOutContextUptime
Tencentfp8$0.83 in·$2.50 out·1M·100% up

Per million tokens. Prices and uptime via OpenRouter, checked 16 Sep 2026.

Writing DNA

Style Comparison

Similarity
53%

Hy4 Preview uses 3.9x more emoji

GPT OSS 20B
Hy4 Preview
54%Vocabulary53%
17wSentence Length16w
0.26Hedging0.43
5.9Bold5.9
3.3Lists3.8
0.10Emoji0.40
0.75Headings0.67
0.32Transitions0.13
Based on 21 + 27 text responses
Research

What we learned reading every model

FAQ

Common questions

Keep exploring

More comparisons

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Same lab, same size, long tail

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Model pages

GPT OSS 20B logo
GPT OSS 20B54 outputs, specs and price
Hy4 Preview logo
Hy4 Preview58 outputs, specs and price
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