Choose Anthropic: Claude Haiku 5.5 if…
No advantage on the data we track — pick it for provider preference or output quality on your own prompts.
Anthropic: Claude Haiku 5.5 vs Meta: Muse Spark 1.3 Contributor
Meta: Muse Spark 1.3 Contributor comes out ahead on the data we track: 2 advantages and none for Anthropic: Claude Haiku 5.5.
Key numbers
| Spec | Anthropic: Claude Haiku 5.5 | Meta: Muse Spark 1.3 Contributor |
|---|---|---|
| Provider | Anthropic | Meta |
| Input price (per 1M tokens) | $0.10 | $0.10 |
| Output price (per 1M tokens) | $0.50 | $0.20 |
| Blended price (3:1 input/output) | $0.20 | $0.13 |
| Cheaper than … of all models we track | 69% | 77% |
| 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 | 2026-10-07 | 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 Haiku 5.5 | Meta: Muse Spark 1.3 Contributor | Difference |
|---|---|---|---|
| Customer-support chatbot 50,000 conversations — each a 6-turn conversation (1,500 in / 400 out tokens) | $17.50 | $11.50 | Meta: Muse Spark 1.3 Contributor saves $6.00 |
| RAG search over documents 20,000 questions — each a question answered from ~8 retrieved passages (6,000 in / 500 out tokens) | $17.00 | $14.00 | Meta: Muse Spark 1.3 Contributor saves $3.00 |
| 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) | $18.00 | $14.40 | Meta: Muse Spark 1.3 Contributor saves $3.60 |
| Batch summarisation 10,000 documents — each a 6,000-word report summarised to a page (8,000 in / 600 out tokens) | $11.00 | $9.20 | Meta: Muse Spark 1.3 Contributor saves $1.80 |
| Long-document analysis 500 documents — each a 150-page contract or codebase read in one pass (100,000 in / 2,000 out tokens) | $5.50 | $5.20 | Meta: Muse Spark 1.3 Contributor saves $0.30 |
Capabilities side by side
| Capability | Anthropic: Claude Haiku 5.5 | Meta: Muse Spark 1.3 Contributor | 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 Haiku 5.5: price unchanged since we started tracking it on 2026-10-08.
- Meta: Muse Spark 1.3 Contributor: price unchanged since we started tracking it on 2026-09-03.
Which should you choose?
Choose Meta: Muse Spark 1.3 Contributor if…
- cost matters at scale — it is 38% cheaper on a typical 3:1 input/output mix ($11.50 vs $17.50 a month for 50,000 support chats)
- you generate long outputs in one go — up to 944K tokens (about 707,800 words) per response
Frequently asked questions
Is Anthropic: Claude Haiku 5.5 better than Meta: Muse Spark 1.3 Contributor?
Meta: Muse Spark 1.3 Contributor comes out ahead on the data we track: 2 advantages and none for Anthropic: Claude Haiku 5.5.
Which is cheaper, Anthropic: Claude Haiku 5.5 or Meta: Muse Spark 1.3 Contributor?
Meta: Muse Spark 1.3 Contributor is cheaper: $0.13 vs $0.20 per 1M tokens at a typical 3:1 input/output mix, 38% less. For 50,000 support conversations a month that is $11.50 against $17.50.
How much do Anthropic: Claude Haiku 5.5 and Meta: Muse Spark 1.3 Contributor cost per million tokens?
Anthropic: Claude Haiku 5.5 costs $0.10 per 1M input tokens and $0.50 per 1M output tokens; Meta: Muse Spark 1.3 Contributor costs $0.10 input and $0.20 output. Output tokens are billed separately, so long answers shift the gap.
Which has the bigger context window, Anthropic: Claude Haiku 5.5 or Meta: Muse Spark 1.3 Contributor?
Meta: Muse Spark 1.3 Contributor: 1.0M tokens, about 1,573 pages, against 1M (about 1,500 pages) for Anthropic: Claude Haiku 5.5.
Do Anthropic: Claude Haiku 5.5 and Meta: Muse Spark 1.3 Contributor support function calling and JSON output?
Tool calling — Anthropic: Claude Haiku 5.5: yes, Meta: Muse Spark 1.3 Contributor: yes. JSON-schema structured output — Anthropic: Claude Haiku 5.5: yes, Meta: Muse Spark 1.3 Contributor: yes.
Can Anthropic: Claude Haiku 5.5 or Meta: Muse Spark 1.3 Contributor read images?
Yes, both accept image input.
Is Anthropic: Claude Haiku 5.5 or Meta: Muse Spark 1.3 Contributor free to use?
No free variant is listed for either; both are pay-per-token.
What is the maximum output length of Anthropic: Claude Haiku 5.5 and Meta: Muse Spark 1.3 Contributor?
Anthropic: Claude Haiku 5.5 can write up to 128K tokens (about 96,000 words) per response; Meta: Muse Spark 1.3 Contributor up to 944K (about 707,800 words).
When were Anthropic: Claude Haiku 5.5 and Meta: Muse Spark 1.3 Contributor released?
Anthropic: Claude Haiku 5.5 was listed on 2026-10-07; Meta: Muse Spark 1.3 Contributor on 2026-09-02.
About the two models
Anthropic: Claude Haiku 5.5
Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. It succeeds Claude Haiku 4.5 with stronger coding, computer use, and...
Full Anthropic: Claude Haiku 5.5 specs →Meta: Muse Spark 1.3 Contributor
Muse Spark 1.3 Contributor is the cost-efficient contributor tier of Meta’s multimodal reasoning model for experimentation, learning, and early-stage agentic, multi-agent, and coding workflows. It is designed to track information...
Full Meta: Muse Spark 1.3 Contributor specs →