GPT Terra Latest is $0.25 cheaper per 1M input tokens (20% lower; 1.25x difference).
API cost decision in 10 seconds
GPT Terra Latest vs Muse Spark 1.2
Pick Muse Spark 1.2 for lower cost; pick GPT Terra Latest only if the larger context window matters more.
Page updated:
Data confirmed:
Prices normalized to USD per 1M tokens
Sample workload: 1M input + 500K output
Budget verdict
Pick Muse Spark 1.2 for lower cost; pick GPT Terra Latest only if the larger context window matters more.
On the standard 1M input plus 500K output workload, Muse Spark 1.2 is estimated at $3.38 vs $3.5 for GPT Terra Latest, saving $0.12 (3.6% lower).
Cost-first pickMuse Spark 1.2
Context-first pickGPT Terra Latest
Sample savings$0.123.6%
10x traffic gap$1.25
GPT Terra Latest has more context, but Muse Spark 1.2 saves $0.12 on the standard workload. At 10x that traffic, the same price gap is about $1.25. Use the calculator below to replace the sample workload with your own token volume.
Cost sensitivity
Workload Sensitivity
Cost winner changes by workload shape: input-heavy / RAG favors GPT Terra Latest, balanced workload favors Muse Spark 1.2, and output-heavy chatbot favors Muse Spark 1.2.
| Workload shape | Token mix | Better pick | GPT Terra Latest | Muse Spark 1.2 |
|---|---|---|---|---|
| Input-heavy / RAG | 5M input + 500K output | GPT Terra Latest | $7.5 | $8.38 |
| Balanced workload | 1M input + 1M output | Muse Spark 1.2 | $6 | $5.5 |
| Output-heavy chatbot | 1M input + 5M output | Muse Spark 1.2 | $26 | $22.5 |
Muse Spark 1.2 is $0.75 cheaper per 1M output tokens (15% lower; 1.18x difference).
GPT Terra Latest has 1.42K more context (1x larger).
Muse Spark 1.2 is $0.12 cheaper on the standard workload (3.6% lower).
Estimate your workload cost
Your Workload Cost
This estimate uses normalized public API pricing per 1M tokens. It is a planning aid, not a billing quote. Verify provider pricing, limits, and terms before production use.
Quick Decision
GPT Terra Latest has the lower input price; Muse Spark 1.2 has the lower output price; GPT Terra Latest offers the larger context window. For the 1M input plus 500K output sample, Muse Spark 1.2 is cheaper for the standard workload.
For a 1M input token plus 500K output token workload, the estimated API cost is $3.5 for GPT Terra Latest and $3.38 for Muse Spark 1.2.
Choose GPT Terra Latest when you care most about lower input-token price, and larger context window.
Choose Muse Spark 1.2 when you care most about lower output-token price.
- On the standard 1M input plus 500K output workload, Muse Spark 1.2 is estimated at $3.38 vs $3.5 for GPT Terra Latest, saving $0.12 (3.6% lower).
- Muse Spark 1.2 is $0.12 cheaper on the standard workload (3.6% lower).
- GPT Terra Latest is $0.25 cheaper per 1M input tokens (20% lower; 1.25x difference).
- Muse Spark 1.2 is $0.75 cheaper per 1M output tokens (15% lower; 1.18x difference).
- GPT Terra Latest has 1.42K more context (1x larger).
| Feature | GPT Terra Latest (OpenAI) | Muse Spark 1.2 (Meta) |
|---|---|---|
| Input Price prompt tokens per 1M | $1 | $1.25 |
| Completion Price per 1M tokens | $5 | $4.25 |
| Sample Workload Cost 1M input + 500K output | $3.5 | $3.38 |
| Context Window | 1.05M | 1.05M |
| Release Date |
Use-Case Decision Matrix
| Use case | Better pick | Why |
|---|---|---|
| Budget-constrained production | Muse Spark 1.2 | On the standard 1M input plus 500K output workload, Muse Spark 1.2 is estimated at $3.38 vs $3.5 for GPT Terra Latest, saving $0.12 (3.6% lower). |
| High-volume input processing | GPT Terra Latest | Lower prompt-token price matters most when prompts, retrieved passages, or documents dominate the bill. |
| Long responses and chatbots | Muse Spark 1.2 | Lower output-token price matters most when assistants generate many completion tokens. |
| RAG or long-document work | GPT Terra Latest | A larger context window leaves more room for retrieved passages, conversation history, or source files. |
Related Alternatives
- gpt-oss-120b (free) can replace GPT Terra Latest when lower sample workload cost matters most: $0.
- gpt-oss-20b (free) can replace GPT Terra Latest when lower sample workload cost matters most: $0.
- gpt-oss-20b can replace GPT Terra Latest when lower sample workload cost matters most: $0.06.
- gpt-oss-20b (batch) can replace GPT Terra Latest when lower sample workload cost matters most: $0.08.
- Grok 4.20 Multi-Agent offers 2M context with $2.5 sample workload cost.
- Grok 4.20 offers 2M context with $2.5 sample workload cost.
- Llama 4 Scout offers 1.31M context with $0.25 sample workload cost.
- Kimi K3.1 Pro · MoonshotAI · #1
- DeepSeek V4.1 Flash 1017 · DeepSeek · #2
- DeepSeek V4.1 Flash · DeepSeek · #3
- GLM 5.3 Flash · Z.ai · #4
Cheaper alternatives
Review low-cost models sorted by a standard 1M input plus 500K output workload.
Open cheapest modelsLarger context alternatives
Find models with larger context windows for RAG, long documents, and codebase review.
Open largest context modelsProvider catalogs
Compare models within provider hubs before choosing a final API vendor.
Open provider hubsOpenAI catalog
Review all tracked OpenAI models before deciding whether this matchup is the right shortlist.
Open OpenAI modelsMeta catalog
Check other Meta models with comparable pricing, context, or release timing.
Open Meta modelsThis model always redirects to the latest model in the GPT Terra family.
Muse Spark 1.2 is a reasoning model from Meta, designed for complex agentic tasks. It accepts text, images, video, and PDF documents, returns text, and offers a 1M-token context window....