Claude Opus 5 vs Muse Spark 1.3

Pick a route and service tier under each model. Prices, the calculator and the verdicts follow your choice.

Try Claude Opus 5 in Chat

At a glance

Generated from the rows below

Choose Claude Opus 5 for

The highest Epoch Capabilities Index (164.4)
Included in 19 subscription plans
The most routes on Phaseo: 7

Choose Muse Spark 1.3 for

The lowest cost per typical request ($0.0046)
The largest context window: 1,048,576 tokens
The only one that takes video, audio

Overview

Lab

Anthropic

Pricing

Prices on the route and tier chosen under each model

Priced onAnthropic · StandardMeta · Standard

Input

$5.00/ 1M tokensRegion: US$5.50

$1.25/ 1M tokens

Output

$25.00/ 1M tokensRegion: US$27.50

$4.25/ 1M tokens

Cache read

$0.50/ 1M tokensRegion: US$0.55

$0.15/ 1M tokens

Cache write, 5 minutes

$6.25/ 1M tokensRegion: US$6.875

No write fee listed

Cache write, 1 hour

$10.00/ 1M tokensRegion: US$11.00

No write fee listed

Typical request2K tokens in, 500 out

$0.0225

$0.0046

What will it cost?

Estimate a month of requests on the route and tier chosen for each model

Input tokens per request

Output tokens per request

Cached share of input (%)

Requests per day

ModelMonthly costPer requestPer month

Claude Opus 5Anthropic · Standard$0.0225$675.00

Muse Spark 1.3Meta · Standard$0.0046$138.75

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

Latency p50

No traffic in the last 5 days

Throughput p50

No traffic in the last 5 days

Requests, last 24 hours

None in the last 24 hours

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

Tool calling

Yes

Structured outputs

Yes

Reasoning effort

Yes

Web search

Yes

Prompt cachingon the chosen route

Yes

Quantisationon the chosen route

Not stated

Benchmarks

Only results that two or more of the selected models report get a row

Compare at effort

Epoch Capabilities Index Independent

Higher is better · dot is the estimate, band is the 95% confidence interval · Epoch AI, CC BY 4.0

Claude Opus 5164.4

Muse Spark 1.3158.0

Artificial Analysis Intelligence Index Independent

Higher is better · at Max effort · 2 of 2 models tested

Claude Opus 550.8

Muse Spark 1.348.1

Where they rank

The five leaders on each capability index, then the compared models. Each model at its best-scoring setting.

Artificial Analysis Intelligence Index52 models ranked

Artificial Analysis Coding Index171 models ranked

Artificial Analysis Agentic Index112 models ranked

Epoch Capabilities Index164 models ranked

Agentic

Artificial Analysis Agentic Indexmatched by effort level

56.5

55.5

Coding

Artificial Analysis Coding Indexmatched by effort level

75.8

Cost

Artificial Analysis Evaluation Cost (USD)matched by effort level · lower is better

$7,275

$1,736

Artificial Analysis Evaluation Cost (USD)matched by effort level · lower is better

$9,010

$1,906

General

Artificial Analysis Intelligence Indexmatched by effort level

44.2

36.6

Artificial Analysis Progress Index v1matched by effort level

333.7

324.5

Lab-reported results come from each lab’s own launch materials and may use different settings, so none is marked best. Independent results come from third-party evaluators.

Providers

Where each model runs on Phaseo, with standard-tier prices per 1M tokens. Providers that serve more of these models come first.

Anthropic

$5.00 in · $25.00 out$10.00 per 1K requests Native web search requests1M context · Standard, Batch, Priority

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Details

Knowledge cutoff

Jan 2026

Not published

Status

Available

Licence

Proprietary

Subscription plans

19 plansClaude Enterprise, Claude Max, Claude Max 5x…

6 plansCursor Enterprise, Cursor Pro, Cursor Pro+…

API docs

Not published

Open docs

Claude Opus 5 vs Muse Spark 1.3: side-by-side summary

Claude Opus 5 and Muse Spark 1.3 are both available through the Phaseo API, so switching between them is a change of model id rather than a new integration.

Claude Opus 5 is from Anthropic. It has a 1,000,000-token context window. On its cheapest route it costs $5.00 per 1M input tokens and $25.00 per 1M output tokens.

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.

Claude Opus 5 model details, providers and pricing Muse Spark 1.3 model details, providers and pricing

Claude Opus 5 vs Muse Spark 1.3 at a glance

Claude Opus 5 and Muse Spark 1.3 compared on price, context window and benchmark score
Attribute	Claude Opus 5	Muse Spark 1.3
Lab	Anthropic	Meta
Input price per 1M tokens	$5.00	$1.25
Output price per 1M tokens	$25.00	$4.25
Context window	1,000,000 tokens	1,048,576 tokens
Max output	128,000 tokens	131,072 tokens
Artificial Analysis Intelligence Index	44.2 (#10)	36.6 (#13)

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, Claude Opus 5 or Muse Spark 1.3?

Muse Spark 1.3 is cheaper for both input and output tokens. Claude Opus 5 costs $5.00 per 1M input tokens and $25.00 per 1M output tokens; Muse Spark 1.3 costs $1.25 and $4.25, each on its cheapest standard route on Phaseo.

Which has the longer context window, Claude Opus 5 or Muse Spark 1.3?

Muse Spark 1.3 has the longer context window at 1,048,576 tokens, compared with 1,000,000 tokens for Claude Opus 5.

Which scores higher on the Artificial Analysis Intelligence Index, Claude Opus 5 or Muse Spark 1.3?

Claude Opus 5 scores higher on the Artificial Analysis Intelligence Index. Claude Opus 5 scores 44.2, ranked #10 of 52. Muse Spark 1.3 scores 36.6, ranked #13 of 52.

Can I use Claude Opus 5 and Muse Spark 1.3 through one API?

Yes. Both are served through the Phaseo API, so you can switch between them by changing the model id.