Which is cheaper, Muse Spark 1.2 and GPT-6 Sol?

Muse Spark 1.2 has the lowest input price. Per 1M input tokens: Muse Spark 1.2 from $1.25 and GPT-6 Sol from $2.00.

Which has the larger context window, Muse Spark 1.2 and GPT-6 Sol?

Muse Spark 1.2 has the largest context window: Muse Spark 1.2 1,048,576 tokens and GPT-6 Sol 400,000 tokens.

Can I switch between Muse Spark 1.2 and GPT-6 Sol without changing my code?

Yes. All of them are served through FastRouter's OpenAI-compatible API, so switching is a change of the model parameter (meta/muse-spark-1.2, openai/gpt-6-sol).

Muse Spark 1.2 vs GPT-6 Sol

Side-by-side pricing per provider, context window, benchmark scores and speed, all on one OpenAI-compatible API.

Muse Spark 1.2 Metameta/muse-spark-1.2

GPT-6 Sol OpenAIopenai/gpt-6-sol

Creator

Muse Spark 1.2 vs GPT-6 Sol: summary

Muse Spark 1.2 and GPT-6 Sol are both available through FastRouter's OpenAI-compatible API, so switching between them is a change of model id, not a new integration.

Muse Spark 1.2, from Meta, has a 1,048,576-token context window, costs $1.25/1M input and $4.25/1M output tokens and scores 39.6 on the Artificial Analysis Intelligence Index.

GPT-6 Sol, from OpenAI, has a 400,000-token context window, costs $2.00/1M input and $10.00/1M output tokens and scores 47.6 on the Artificial Analysis Intelligence Index.

Muse Spark 1.2 is the cheapest on input, 1.6× cheaper than the next model, Muse Spark 1.2 has the largest context window and GPT-6 Sol scores highest for intelligence.

Switch with one line

client = OpenAI(base_url="https://api.fastrouter.ai/api/v1", api_key="<FASTROUTER_API_KEY>") client.chat.completions.create(model="meta/muse-spark-1.2", messages=[...]) # or client.chat.completions.create(model="openai/gpt-6-sol", messages=[...])

Full API docs

Frequently asked questions

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Benchmark scores sourced from ArtificialAnalysis