MODEL PROOF
Claude Sonnet 4
BETTER VALUE OPTION
A stored alternative has an equal-or-higher measured score and an equal-or-lower price.
Base context tier shown; inspect the complete context ladder below.
Gemini 3.8 Flash · Δ score 157.9 points · 50% lower measured price · $3.00 / 1M tokens
MiMo-V2.6-Pro is a further stored option with these losses: no file input
- Independent LMArena score
- 1,339.1 ± 4.44 · 38,912 votes
- Context window
- 200K
- Maximum output
- 64K
- Input modalities
- image, text, file
- Output modalities
- text
- Published input price
- $3.00 / 1M tokens
- Published output price
- $15.00 / 1M tokens
- Pricing kind
- fixed
- Context tiers
- Tiered by context
Inspect complete billing conditions and endpoint terms below.
Price from Amazon Bedrock: the cheapest offer that is serving, at standard delivery and at the maker’s precision or better, at its standard rate.
Every price dimension · USD per million tokens
| Input | $3.00/M |
|---|---|
| Output | $15.00/M |
| Cached input | $0.300/M |
| Cache write | $3.75/M |
| Cache write 1h | $6.00/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 200,000 tokens | $6.00/M in (2×) $22.50/M out $0.600/M cached input $7.50/M cache write |
|---|
Who sells it
The same weights, different shops. Cheapest is not like-for-like when serving precision differs.
2 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) |
|---|---|---|---|---|
| Amazon Bedrockamazon-bedrock/eu-west-1 Endpoint terms
| $3.00 | $15.00 | undeclared | 100.00% |
| Amazon Bedrockamazon-bedrock Endpoint terms
| $3.00 | $15.00 | undeclared | 100.00% |
Independent scores
| LMArena Elo | 1339.1default |
|---|
LMArena Elo under CC BY 4.0. Absence of another board is not a score of zero.
Best rankings by task
- 3D #63 1147
- SVG #66 1077
- Game development #69 1151
- Data visualisation #72 1164
- Code categories #78 1147
- UI components #78 1135
- Websites #82 1152
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 | 200K |
|---|---|
| Max output | 64K |
| Input modes | image, text, file |
| Tool use | yes |
| Reasoning | optional |
| Knowledge cutoff | 2025-01-31 |
| Open weights | no |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-10-06 |
| Quality data | verified |
Claude Sonnet 4 significantly enhances the capabilities of its predecessor, Sonnet 3.7, excelling in both coding and reasoning tasks with improved precision and controllability. Achieving state-of-the-art performance on SWE-bench (72.7%),...
Questions this page answers
What does Claude Sonnet 4 cost?
$3.00/M in, $15.00/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does Claude Sonnet 4 have an independent quality score?
Claude Sonnet 4 has an LMArena score in this catalogue.
What beats Claude Sonnet 4?
Gemini 3.8 Flash has an equal-or-higher measured score and an equal-or-lower price.
Does this page use Artificial Analysis scores for Claude Sonnet 4?
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-sonnet-4/)<a href="https://undominated.ai/models/anthropic__claude-sonnet-4/"><img src="https://undominated.ai/badge/anthropic__claude-sonnet-4.svg" alt="Claude Sonnet 4 — Undominated.ai dominance verdict" height="36"></a>Direct file: https://undominated.ai/badge/anthropic__claude-sonnet-4.svg — a static SVG, written by scripts/build-badges.mjs on every build, so the copy you embed is never
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