SylphxModels

Meta

Muse Spark family · v1.3

Muse Spark 1.3 Contributor

meta/muse-spark-1.3-contributor

Meta: Muse Spark 1.3 Contributor on Sylphx Models · 1.05M of context. One Responses contract, with list prices published per million tokens.

Released
—
Provider
Meta
Context
1,048,576 tokens
Open in the playgroundSee a request sampleRead the docs
Input $0.126 / MOutput $0.252 / MCached input $0.0126 / MFull rate sheet
Context window1,048,576tokens per request
Max outputNot publishedtokens per response
Input$0.126 / Mper million tokens
Output$0.252 / Mper million tokens
Requests · 7d5.3Kmetered on Responses
Avg TPM · 7d138.8K1.4B tokens

Pricing

USD per million tokens
Input
$0.126
Output
$0.252
Cached input
$0.0126

$0.16 for 750,000 input and 250,000 output tokens.

Assumption: one batch of 750,000 input plus 250,000 output tokens at the published list prices — recompute for your own mix. Blended $0.1575 per million at a 3:1 mix.

Chat replies · 3:1 input:output
$0.1575 / M
Long documents · 9:1 input:output
$0.1386 / M
Heavy output · 1:1 input:output
$0.189 / M
Cache write
Not published
Currency and unit
USD / million tokens

Cached input reads cost 90% less than fresh input tokens.

Full rate sheet and billing rules.

Specification

Context window
1,048,576 tokens
Max output
Not published
Input modalities
Not published
Output modalities
Not published
Family
Muse Spark
Version
v1.3
Provider
Meta
Released
—
Model id
meta/muse-spark-1.3-contributor

Data posture

Standard

Prompts and outputs sent to this model are not used to train models.

Training on what you send
No
Zero Data Retention
Available

Traffic

Daily traffic the platform metered on Responses for this exact model id. Totals are the window they name; a day with no traffic is zero, not missing.

Requests · last 7 days
5,335
Tokens · last 7 days
1.4B
Average TPM · last 7 days
138.8K
Series total · 14d
49,372 req · 12.4B tok

14-day total 49,372 · peak 24,639 on Sep 7

Sep 7Sep 20
Daily numbers for the last 14 days
Daily requests and tokens metered for meta/muse-spark-1.3-contributor
DayRequestsTokens
2026-09-0724,6395,649,180,936
2026-09-0811,5262,332,514,308
2026-09-097,8302,995,838,897
2026-09-1042574,817
2026-09-1100
2026-09-1200
2026-09-1300
2026-09-142,962926,517,156
2026-09-152,366472,112,847
2026-09-1642,336
2026-09-1700
2026-09-1800
2026-09-1900
2026-09-2037,711
curl https://api.models.sylphx.ai/v1/responses \
  -H "Authorization: Bearer $SYLPHX_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
    "model": "meta/muse-spark-1.3-contributor",
    "input": "Summarise this incident report in three bullets.",
    "stream": false
  }'

How to call it

Send the official Responses document to the base URL above with your organization key and this exact model id. Streaming arrives as ordered events with one terminal event.

  • Retries: send an Idempotency-Key and a retry replays the original response instead of billing twice.
  • Errors: typed envelopes tell you whether to retry, wait, or fix the request.
  • Keys: mint and revoke organization keys from the console.
QuickstartResponses APIErrors and retries

Related models

Derived from this catalog: same provider first, then the same family, then the nearest neighbours by input price and context window.

More from Meta

Same provider

Similar price and context

Nearest by input price and context window

Independent evaluation

We do not publish benchmark scores for this model — we have not verified any. These external leaderboards run their own tests, so check them against your own workload.

Not our numbers
5,335 requests metered on meta/muse-spark-1.3-contributor over the last seven daysEvery Meta model →
Muse Spark 1.3 Contributor — pricing, context, and usage · Sylphx Models