MODEL PROOF
Claude Haiku 5.5
NO LMARENA GENERAL SCORE
No LMArena general score is attached to this listing.
Base context tier shown; inspect the complete context ladder below.
- Independent LMArena score
- No LMArena general score
- Context window
- 1M
- Maximum output
- 128K
- Input modalities
- text, image, file
- Output modalities
- text
- Published input price
- $0.100 / 1M tokens
- Published output price
- $0.500 / 1M tokens
- Pricing kind
- fixed
- Context tiers
- Tiered by context
Inspect complete billing conditions and endpoint terms below.
Price from Anthropic: the cheapest offer that is serving, at standard delivery, with at least 90% of the reference context and at the maker’s precision or better, at its standard rate.
Every price dimension · USD per million tokens
| Input | $0.100/M |
|---|---|
| Output | $0.500/M |
| Cached input | $0.010/M |
| Cache write | $0.125/M |
| Cache write 1h | $0.200/M |
| Reasoning | Unknown/M |
| Web search | $0.01/call |
The headline rate does not apply to a long-context workload.
Complete context ladder · 1 tier
| More than 100,000 tokens | $0.500/M in (5×) $2.50/M out $0.050/M cached input $0.625/M cache write |
|---|
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
10 provider offers · rates, limits and conditions
Rates are USD per million tokens. Endpoint terms can differ even when the quoted price and precision match. A listed parameter is a provider declaration, not a task-success test.
| Seller | Input | Output | Precision | Uptime (1d) |
|---|---|---|---|---|
| Googlegoogle-vertex/global Endpoint terms
| $0.100 | $0.500 | undeclared | 100.00% |
| Claude Platform on AWSclaude-on-aws Endpoint terms
| $0.100 | $0.500 | undeclared | 100.00% |
| Azureazure/global Endpoint terms
| $0.100 | $0.500 | undeclared | 100.00% |
| Anthropicanthropic Endpoint terms
| $0.100 | $0.500 | undeclared | 100.00% |
| Amazon Bedrockamazon-bedrock Endpoint terms
| $0.100 | $0.500 | undeclared | 100.00% |
| Googlegoogle-vertex/europe Endpoint terms
| $0.110 | $0.550 | undeclared | 100.00% |
| Googlegoogle-vertex/us Endpoint terms
| $0.110 | $0.550 | undeclared | 100.00% |
| Azureazure/us Endpoint terms
| $0.110 | $0.550 | undeclared | 100.00% |
| Amazon Bedrockamazon-bedrock/us-east-1 Endpoint terms
| $0.110 | $0.550 | undeclared | 100.00% |
| Amazon Bedrockamazon-bedrock/eu-west-1 Endpoint terms
| $0.110 | $0.550 | undeclared | 100.00% |
Independent scores
No independent benchmark has measured this model. Unrated is not a score of zero.
Best rankings by task
- 3D #10 1343
- Game development #13 1315
- Data visualisation #15 1293
- Code categories #23 1279
- UI components #23 1291
- Websites #36 1263
Per-task Elo and rank from Design Arena, via OpenRouter’s model feed. The rank is the feed’s, and it counts models OpenRouter does not list.
Capability
| Context window | 1M |
|---|---|
| Max output | 128K |
| Input modes | text, image, file |
| Tool use | yes |
| Reasoning | optional |
| Open weights | no |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-10-21 |
| Quality data | unrated |
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...
Questions this page answers
What does Claude Haiku 5.5 cost?
$0.100/M in, $0.500/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does Claude Haiku 5.5 have an independent quality score?
Claude Haiku 5.5 has no LMArena general score in this catalogue. Unrated is not a score of zero.
What beats Claude Haiku 5.5?
Claude Haiku 5.5 has no LMArena general score. Unrated is not a score of zero.
Does this page use Artificial Analysis scores for Claude Haiku 5.5?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.
Does a missing score mean Claude Haiku 5.5 scored zero?
Unrated is not a score of zero.
MODEL MONUMENT
Save or share this proof
Badge
The verdict as one SVG, for a README or a docs page. It states this model's dominance status at the balanced workload on the LMArena lens, with the date it was computed, and it is rebuilt with the catalogue — so it changes when the verdict changes, including to one you would rather it did not.
[](https://undominated.ai/models/anthropic__claude-haiku-5.5/)<a href="https://undominated.ai/models/anthropic__claude-haiku-5.5/"><img src="https://undominated.ai/badge/anthropic__claude-haiku-5.5.svg" alt="Claude Haiku 5.5 — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/anthropic__claude-haiku-5.5.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
older than the last deploy.
