Muse Spark 1.3 vs Kimi K3.1 Pro
Pick a route and service tier under each model. Prices, the calculator and the verdicts follow your choice.
At a glance
Generated from the rows below
Choose Muse Spark 1.3 for
- The lowest cost per typical request ($0.0046)
- The only one that takes audio
- The most routes on Phaseo: 2
Choose Kimi K3.1 Pro for
- The longest output: 1,048,576 tokens
Overview
Pricing
Prices on the route and tier chosen under each model
What will it cost?
Estimate a month of requests on the route and tier chosen for each model
Uses the route and tier chosen under each model, over 30 days. Cached input is billed at the cache-read rate.
Performance
Live gateway traffic
Activity
Tokens sent through Phaseo each day over the last 30 days
None of these models has had traffic through Phaseo in the last 30 days.
Features
Features from the parameters Phaseo routes support
Benchmarks
Only results that two or more of the selected models report get a row
Artificial Analysis Intelligence Index Independent
Higher is better · at Max effort · 1 of 2 models tested
Where they rank
The five leaders on each capability index, then the compared models. Each model at its best-scoring setting.
Artificial Analysis Intelligence Index42 models ranked
- #1Claude Opus 5.558.4
- #2GPT-6 Astra56.9
- #3GPT-6.1 Sol54.5
- #4Claude Sonnet 5.554.2
- #5GPT-6.1 Terra51.0
- #9Kimi K3.1 Pro46.0
- #11Muse Spark 1.336.4
Artificial Analysis Coding Index171 models ranked
- #1Claude Fable 5.181.6
- #2GPT 5.6 Sol78.3
- #3Claude Opus 578.0
- #4GPT-6 Astra77.1
- #5Grok 4.676.8
- #7Muse Spark 1.376.5
Artificial Analysis Agentic Index112 models ranked
- #1Claude Fable 5.157.9
- #2Claude Opus 556.5
- #3Qwen 3.8 Max 090256.0
- #4Muse Spark 1.355.5
- #5Qwen 3.8 Flash Next53.6
Epoch Capabilities Index164 models ranked
- #1GPT-6 Astra169.1
- #2Claude Opus 5.5168.4
- #3GPT-6.1 Terra168.1
- #4GPT-6.1 Sol167.8
- #5Claude Sonnet 5.5166.7
- #23Muse Spark 1.3157.4
Lab-reported results come from each lab’s own launch materials and may use different settings. Independent results come from third-party evaluators.
Providers
Routes Phaseo serves today, standard-tier prices per 1M tokens
| Provider | Input | Output | Cache read | Context window | Max output | Tiers |
|---|---|---|---|---|---|---|
 | $1.25 | $4.25 | $0.15 | 1,048,576 | – | Standard |
 | $1.25 | $4.25 | $1.00 | 1,048,576 | 131,072 | Standard |
- Meta
- Input
- $1.25
- Output
- $4.25
- Context window
- 1,048,576
Standard
- EmpirioLabs AI
- Input
- $1.25
- Output
- $4.25
- Context window
- 1,048,576
Standard
Standard-tier prices. The first row is the cheapest route; pick another under the model’s name at the top.
Details
Muse Spark 1.3 vs Kimi K3.1 Pro: side-by-side summary
Muse Spark 1.3 and Kimi K3.1 Pro are both available through the Phaseo API, so switching between them is a change of model id rather than a new integration.
Muse Spark 1.3 is from Meta. It has a 1,048,576-token context window. On its cheapest route it costs $1.25 per 1M input tokens and $4.25 per 1M output tokens.
Kimi K3.1 Pro is from Moonshot. It has a 1,048,576-token context window. On its cheapest route it costs $2.00 per 1M input tokens and $10.00 per 1M output tokens.
Muse Spark 1.3 model details, providers and pricingKimi K3.1 Pro model details, providers and pricing
Muse Spark 1.3 vs Kimi K3.1 Pro at a glance
| Attribute | Muse Spark 1.3 | Kimi K3.1 Pro |
|---|---|---|
| Lab | Meta | Moonshot |
| Input price per 1M tokens | $1.25 | $2.00 |
| Output price per 1M tokens | $4.25 | $10.00 |
| Context window | 1,048,576 tokens | 1,048,576 tokens |
| Max output | 131,072 tokens | 1,048,576 tokens |
| Artificial Analysis Intelligence Index | 36.4 (#11) | 46.0 (#9) |
Prices are each model's cheapest standard route on Phaseo. Benchmark ranks use each model's best-scoring evaluated setting.
Frequently asked questions
Which is cheaper, Muse Spark 1.3 or Kimi K3.1 Pro?
Muse Spark 1.3 is cheaper for both input and output tokens. Muse Spark 1.3 costs $1.25 per 1M input tokens and $4.25 per 1M output tokens; Kimi K3.1 Pro costs $2.00 and $10.00, each on its cheapest standard route on Phaseo.
Which has the longer context window, Muse Spark 1.3 or Kimi K3.1 Pro?
Both have a 1,048,576-token context window.
Which scores higher on the Artificial Analysis Intelligence Index, Muse Spark 1.3 or Kimi K3.1 Pro?
Kimi K3.1 Pro scores higher on the Artificial Analysis Intelligence Index. Kimi K3.1 Pro scores 46.0, ranked #9 of 42. Muse Spark 1.3 scores 36.4, ranked #11 of 42.
Can I use Muse Spark 1.3 and Kimi K3.1 Pro through one API?
Yes. Both are served through the Phaseo API, so you can switch between them by changing the model id.