Choose Anthropic: Claude Opus 4.8 (batch) if…
No advantage on the data we track — pick it for provider preference or output quality on your own prompts.
Anthropic: Claude Opus 4.8 (batch) vs Meta: Muse Spark 1.3
Meta: Muse Spark 1.3 comes out ahead on the data we track: 3 advantages and none for Anthropic: Claude Opus 4.8 (batch).
Key numbers
| Spec | Anthropic: Claude Opus 4.8 (batch) | Meta: Muse Spark 1.3 |
|---|---|---|
| Provider | Anthropic | Meta |
| Input price (per 1M tokens) | $2.50 | $1.25 |
| Output price (per 1M tokens) | $12.50 | $4.25 |
| Blended price (3:1 input/output) | $5.00 | $2.00 |
| Cheaper than … of all models we track | 10% | 25% |
| Context window | 1M tokens (~1,500 pages) | 1.0M tokens (~1,573 pages) |
| Larger context than … of all models | 69% | 80% |
| Max output per response | 128K tokens (~96,000 words) | 944K tokens (~707,800 words) |
| Input types | text, image, file | text, image, video, file |
| Output types | text | text |
| Free variant | No | No |
| Listed since | 2026-05-27 | 2026-09-02 |
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What it costs for real workloads
Monthly cost at list price for five common workloads. Token counts per unit are stated so you can scale them to your own traffic. A workload that does not fit a model's context window is marked rather than priced.
| Workload (per month) | Anthropic: Claude Opus 4.8 (batch) | Meta: Muse Spark 1.3 | Difference |
|---|---|---|---|
| Customer-support chatbot 50,000 conversations — each a 6-turn conversation (1,500 in / 400 out tokens) | $438 | $179 | Meta: Muse Spark 1.3 saves $259 |
| RAG search over documents 20,000 questions — each a question answered from ~8 retrieved passages (6,000 in / 500 out tokens) | $425 | $193 | Meta: Muse Spark 1.3 saves $233 |
| Coding / tool-using agent 2,000 tasks — each a multi-step task with tool calls and file context (60,000 in / 6,000 out tokens) | $450 | $201 | Meta: Muse Spark 1.3 saves $249 |
| Batch summarisation 10,000 documents — each a 6,000-word report summarised to a page (8,000 in / 600 out tokens) | $275 | $126 | Meta: Muse Spark 1.3 saves $150 |
| Long-document analysis 500 documents — each a 150-page contract or codebase read in one pass (100,000 in / 2,000 out tokens) | $138 | $66.75 | Meta: Muse Spark 1.3 saves $70.75 |
Capabilities side by side
| Capability | Anthropic: Claude Opus 4.8 (batch) | Meta: Muse Spark 1.3 | What it lets you do |
|---|---|---|---|
| Tool / function calling | ✓ Yes | ✓ Yes | call your APIs and run agent loops |
| Structured output (JSON schema) | ✓ Yes | ✓ Yes | return JSON that validates against your schema |
| Reasoning / thinking mode | ✓ Yes | ✓ Yes | spend extra tokens thinking before answering hard problems |
| Image input | ✓ Yes | ✓ Yes | read screenshots, charts and scanned pages |
| Audio input | — | — | take speech or audio directly |
| File / PDF input | ✓ Yes | ✓ Yes | accept documents without your own parsing step |
| Image output | — | — | generate images, not just text |
| Built-in web search | ✓ Yes | ✓ Yes | answer from live web results |
| Seed (reproducible sampling) | — | — | repeat a generation for tests and evals |
| Log-probabilities | — | — | read token confidence for classification and scoring |
From each model's published parameters and input/output types. “—” means not advertised, not proven absent.
Price history
- Anthropic: Claude Opus 4.8 (batch): price unchanged since we started tracking it on 2026-08-07.
- Meta: Muse Spark 1.3: price unchanged since we started tracking it on 2026-09-03.
Which should you choose?
Choose Meta: Muse Spark 1.3 if…
- cost matters at scale — it is 60% cheaper on a typical 3:1 input/output mix ($179 vs $438 a month for 50,000 support chats)
- you generate long outputs in one go — up to 944K tokens (about 707,800 words) per response
- you want the newer model — released 2026-09-02, 3 months after the other
Frequently asked questions
Is Anthropic: Claude Opus 4.8 (batch) better than Meta: Muse Spark 1.3?
Meta: Muse Spark 1.3 comes out ahead on the data we track: 3 advantages and none for Anthropic: Claude Opus 4.8 (batch).
Which is cheaper, Anthropic: Claude Opus 4.8 (batch) or Meta: Muse Spark 1.3?
Meta: Muse Spark 1.3 is cheaper: $2.00 vs $5.00 per 1M tokens at a typical 3:1 input/output mix, 60% less. For 50,000 support conversations a month that is $179 against $438.
How much do Anthropic: Claude Opus 4.8 (batch) and Meta: Muse Spark 1.3 cost per million tokens?
Anthropic: Claude Opus 4.8 (batch) costs $2.50 per 1M input tokens and $12.50 per 1M output tokens; Meta: Muse Spark 1.3 costs $1.25 input and $4.25 output. Output tokens are billed separately, so long answers shift the gap.
Which has the bigger context window, Anthropic: Claude Opus 4.8 (batch) or Meta: Muse Spark 1.3?
Meta: Muse Spark 1.3: 1.0M tokens, about 1,573 pages, against 1M (about 1,500 pages) for Anthropic: Claude Opus 4.8 (batch).
Do Anthropic: Claude Opus 4.8 (batch) and Meta: Muse Spark 1.3 support function calling and JSON output?
Tool calling — Anthropic: Claude Opus 4.8 (batch): yes, Meta: Muse Spark 1.3: yes. JSON-schema structured output — Anthropic: Claude Opus 4.8 (batch): yes, Meta: Muse Spark 1.3: yes.
Can Anthropic: Claude Opus 4.8 (batch) or Meta: Muse Spark 1.3 read images?
Yes, both accept image input.
Is Anthropic: Claude Opus 4.8 (batch) or Meta: Muse Spark 1.3 free to use?
No free variant is listed for either; both are pay-per-token.
What is the maximum output length of Anthropic: Claude Opus 4.8 (batch) and Meta: Muse Spark 1.3?
Anthropic: Claude Opus 4.8 (batch) can write up to 128K tokens (about 96,000 words) per response; Meta: Muse Spark 1.3 up to 944K (about 707,800 words).
When were Anthropic: Claude Opus 4.8 (batch) and Meta: Muse Spark 1.3 released?
Anthropic: Claude Opus 4.8 (batch) was listed on 2026-05-27; Meta: Muse Spark 1.3 on 2026-09-02.
About the two models
Anthropic: Claude Opus 4.8 (batch)
Claude Opus 4.8 is Anthropic's most capable generally available model in the Opus family. It supports text, image, and file inputs with text output, with reasoning support and a 1M-token...
Full Anthropic: Claude Opus 4.8 (batch) specs →Meta: Muse 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 Meta: Muse Spark 1.3 specs →