AI model comparison

Muse Spark 1.3 Contributor vs Hy4 preview

Pricing, context window, benchmarks, and features compared side by side. Or skip the guesswork and send one prompt to both.

Muse Spark 1.3 Contributor is the cost-efficient contributor tier of Meta’s multimodal reasoning model for experimentation, learning, and early-stage agentic, multi-agent, and coding workflows.

Input / 1M
$0.10
Output / 1M
$0.20
Context
1.05M

Tencent: Hy4 preview is a mixture-of-experts model from Tencent, with 49B active parameters out of 770B total.

Input / 1M
$0.83
Output / 1M
$2.50
Context
1.05M

At a glance

Quick verdict

How the two models stack up on the things people ask about most.

Lower price

meta logo

Muse Spark 1.3 Contributor

9.7x cheaper for a typical chat

Higher intelligence score

Tie

Not enough benchmark data

Larger context window

Tie

1.05M vs 1.05M tokens

Newer release

meta logo

Muse Spark 1.3 Contributor

Released September 2, 2026

Pricing

Muse Spark 1.3 Contributor vs Hy4 preview API pricing

Per-token API rates. Cheaper option highlighted.

Metricmeta logoMuse Spark 1.3 Contributortencent logoHy4 preview
Input tokensPer 1M tokens$0.10$0.83
Output tokensPer 1M tokens$0.20$2.50
Cached input (read)Per 1M tokens$0.00$0.04
Cache writePer 1M tokensNot availableNot available
Web searchPer request$0.0025Not available

What it costs in practice

Estimated cost per 1,000 requests at standard rates. Coding and long-document figures also show the cost when the input is already cached.

Chat message

2K in, 500 out

meta logoMuse Spark 1.3 Contributor$0.30
tencent logoHy4 preview$2.92

Coding task

30K in, 4K out

meta logoMuse Spark 1.3 Contributor$3.80$0.86 cached
tencent logoHy4 preview$35.02$11.26 cached

Long document summary

150K in, 2K out

meta logoMuse Spark 1.3 Contributor$15.40$0.70 cached
tencent logoHy4 preview$130.10$11.30 cached

Specs

Context window and capabilities

How much each model can read, how much it can write, and what it accepts as input.

Metricmeta logoMuse Spark 1.3 Contributortencent logoHy4 preview
Context window1.05M tokens1.05M tokens
Max output944K tokens64K tokens
Input typesFile, Image, Text, VideoText
Output typesTextText
Reasoning effort levelsMax, Extra high, High, Medium, Low, MinimalHigh, Low, None
Default reasoning effortMediumHigh
Release dateSeptember 2, 2026August 28, 2026

Features

Supported features

API features available for each model.

Metricmeta logoMuse Spark 1.3 Contributortencent logoHy4 preview
Tool callingSupportedSupported
Structured outputsSupportedSupported
JSON modeSupportedSupported
ReasoningSupportedSupported
TemperatureSupportedSupported
Stop sequencesNot supportedSupported
Deterministic seedNot supportedSupported
Verbosity controlNot supportedNot supported

Our take

Muse Spark 1.3 Contributor is 9.7x cheaper for a typical chat. The right pick depends on your workload, so the quickest way to settle it is to send the same prompt to both and compare.

FAQ

Frequently asked questions

Is Muse Spark 1.3 Contributor or Hy4 preview cheaper?

Muse Spark 1.3 Contributor is cheaper for a typical chat (2K input tokens and 500 output tokens). Muse Spark 1.3 Contributor costs $0.10 per 1M input tokens and $0.20 per 1M output tokens, while Hy4 preview costs $0.83 per 1M input tokens and $2.50 per 1M output tokens.

Which has a bigger context window, Muse Spark 1.3 Contributor or Hy4 preview?

Muse Spark 1.3 Contributor supports up to 1.05M tokens of context, compared with 1.05M for Hy4 preview.

Can I use Muse Spark 1.3 Contributor and Hy4 preview at the same time?

Yes. Shortcut Chat sends one prompt to multiple models at once, so you can see Muse Spark 1.3 Contributor and Hy4 preview answer side by side and keep the better response.

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Why choose? Ask both.

Send one prompt to Muse Spark 1.3 Contributor and Hy4 preview at the same time. Compare the answers side by side and keep the best one.