MODEL PROOF
Claude Opus 4.6
BETTER VALUE OPTION
A stored alternative has an equal-or-higher measured score and an equal-or-lower price.
Claude Opus 5 · Δ score 1.9 points · same measured price · $10.00 / 1M tokens
- Independent LMArena score
- 1,503 ± 3.49 · 71,993 votes
- Context window
- 1M
- Maximum output
- 128K
- Input modalities
- text, image, file
- Output modalities
- text
- Published input price
- $5.00 / 1M tokens
- Published output price
- $25.00 / 1M tokens
- Pricing kind
- fixed
Inspect complete billing conditions and endpoint terms below.
Every price dimension · USD per million tokens
| Input | $5.00/M |
|---|---|
| Output | $25.00/M |
| Cached input | $0.500/M |
| Cache write | $6.25/M |
| Cache write 1h | $10.00/M |
| Reasoning | Unknown/M |
| Web search | $0.01/call |
| Batch discount | 50% |
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
6 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) |
|---|---|---|---|---|
| Claude Platform on AWSclaude-on-aws Endpoint terms
| $5.00 | $25.00 | undeclared | 99.86% |
| Azureazure/global Endpoint terms
| $5.00 | $25.00 | undeclared | 88.29% |
| Googlegoogle-vertex/global Endpoint terms
| $5.00 | $25.00 | undeclared | 99.87% |
| Amazon Bedrockamazon-bedrock Endpoint terms
| $5.00 | $25.00 | undeclared | 98.54% |
| Anthropicanthropic Endpoint terms
| $5.00 | $25.00 | undeclared | 97.62% |
| Googlegoogle-vertex/europe Endpoint terms
| $5.50 | $27.50 | undeclared | 100.00% |
Independent scores
| LMArena Elo | 1503high |
|---|
LMArena Elo under CC BY 4.0. Absence of another board is not a score of zero.
Best rankings by task
- agenticgamedev #8of 24 1215
- androidnative #11of 35 1216
- mobileapps #12of 40 1239
- website #13of 114 1299
- asciiart #13of 61 1269
- fullstack #13of 41 1227
- dataviz #14of 106 1294
- svg #14of 76 1247
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 | 2026-09-23 |
| Quality data | verified |
| Cross-checked | vendor page |
Opus 4.6 is Anthropic’s strongest model for coding and long-running professional tasks. It is built for agents that operate across entire workflows rather than single prompts, making it especially effective...
Questions this page answers
What does Claude Opus 4.6 cost?
$5.00/M in, $25.00/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does Claude Opus 4.6 have an independent quality score?
Claude Opus 4.6 has an LMArena score in this catalogue.
What beats Claude Opus 4.6?
Claude Opus 5 has an equal-or-higher measured score and an equal-or-lower price.
Does this page use Artificial Analysis scores for Claude Opus 4.6?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.
MODEL MONUMENT
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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-opus-4.6/)<a href="https://undominated.ai/models/anthropic__claude-opus-4.6/"><img src="https://undominated.ai/badge/anthropic__claude-opus-4.6.svg" alt="Claude Opus 4.6 — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/anthropic__claude-opus-4.6.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
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