Models, measured side by side
GPT-5.2 Pro vs Muse Spark 1.3
Compare GPT-5.2 Pro, Muse Spark 1.3 by token pricing, context length, benchmark results, speed and tool support.
Monthly workload
Monthly cost breakdown
InputOutput
GPT-5.2 Pro
$1,260 / mo
Muse Spark 1.3
$46 / mo
Performance comparison
GPT-5.2 Pro
Not listed
Muse Spark 1.3
48.1
Overview
Pricing & capacity
| Pricing & capacity | GPT-5.2 Pro | Muse Spark 1.3 |
|---|---|---|
| Input / 1M tokens | $21 | $1.25 |
| Output / 1M tokens | $168 | $4.25 |
| Cached input / 1M | Not listed | $0.15 |
| Monthly cost | $1,260 | $46 |
| Context window | 400K | 1M |
| Maximum output | 128K | 944K |
Input / 1M tokens
- GPT-5.2 Pro
- $21
- Muse Spark 1.3
- $1.25
Output / 1M tokens
- GPT-5.2 Pro
- $168
- Muse Spark 1.3
- $4.25
Cached input / 1M
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- $0.15
Monthly cost
- GPT-5.2 Pro
- $1,260
- Muse Spark 1.3
- $46
Context window
- GPT-5.2 Pro
- 400K
- Muse Spark 1.3
- 1M
Maximum output
- GPT-5.2 Pro
- 128K
- Muse Spark 1.3
- 944K
Benchmarks & performance
| Benchmarks & performance | GPT-5.2 Pro | Muse Spark 1.3 |
|---|---|---|
| Arena Elo | 1,255 | Not listed |
| MMLU-Pro | 82.8% | Not listed |
| Intelligence Index | Not listed | 48.1 |
| GPQA | Not listed | 93.5% |
| Humanity’s Last Exam | Not listed | 48.7% |
| SciCode | Not listed | 58.8% |
| Output speed | Not listed | 146 tokens/s |
| Time to first token | Not listed | 47.86 s |
| DesignArena rating | Not listed | 1,358 |
| DesignArena win rate | Not listed | 57.3% |
Arena Elo
- GPT-5.2 Pro
- 1,255
- Muse Spark 1.3
- Not listed
MMLU-Pro
- GPT-5.2 Pro
- 82.8%
- Muse Spark 1.3
- Not listed
Intelligence Index
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 48.1
GPQA
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 93.5%
Humanity’s Last Exam
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 48.7%
SciCode
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 58.8%
Output speed
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 146 tokens/s
Time to first token
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 47.86 s
DesignArena rating
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 1,358
DesignArena win rate
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- 57.3%
Tools & features
| Tools & features | GPT-5.2 Pro | Muse Spark 1.3 |
|---|---|---|
| Function calling | Supported | Supported |
| Structured outputs | Supported | Supported |
| JSON mode | Supported | Supported |
| Reasoning | Supported | Supported |
| Deterministic seed | Supported | Not listed |
| Prompt caching | Not listed | Supported |
Function calling
- GPT-5.2 Pro
- Supported
- Muse Spark 1.3
- Supported
Structured outputs
- GPT-5.2 Pro
- Supported
- Muse Spark 1.3
- Supported
JSON mode
- GPT-5.2 Pro
- Supported
- Muse Spark 1.3
- Supported
Reasoning
- GPT-5.2 Pro
- Supported
- Muse Spark 1.3
- Supported
Deterministic seed
- GPT-5.2 Pro
- Supported
- Muse Spark 1.3
- Not listed
Prompt caching
- GPT-5.2 Pro
- Not listed
- Muse Spark 1.3
- Supported
API & availability
| API & availability | GPT-5.2 Pro | Muse Spark 1.3 |
|---|---|---|
| API identifier | gpt-5.2-pro | muse-spark-1.3 |
| API providers | OpenAI | Not listed |
| Prices checked | Oct 8, 2026 | Oct 8, 2026 |
API identifier
- GPT-5.2 Pro
gpt-5.2-pro- Muse Spark 1.3
muse-spark-1.3
API providers
- GPT-5.2 Pro
- OpenAI
- Muse Spark 1.3
- Not listed
Prices checked
- GPT-5.2 Pro
- Oct 8, 2026
- Muse Spark 1.3
- Oct 8, 2026
About the models
GPT-5.2 Pro
GPT-5.2 with extra compute for the most demanding problems. No cached-input discount.
Full pricing & detailsMuse Spark 1.3
Muse Spark 1.3 is a multimodal reasoning model from Meta for long-running agentic, multi-agent, and coding workflows. It is designed to keep track of information across extended tasks, work through...
Full pricing & detailsComparison FAQ
GPT-5.2 Pro: $21 input and $168 output per million tokens. Muse Spark 1.3: $1.25 input and $4.25 output per million tokens. The cheaper choice depends on your input-to-output ratio; a model can have a lower input rate but a higher output rate.