MODEL PROOF
Claude Sonnet 4.5 (batch)
NOT INDEPENDENTLY RATED
No independent LMArena score is published for this model.
- Independent LMArena score
- Not independently rated
- Context window
- 1M
- Maximum output
- 64K
- Input modalities
- text, image, file
- Output modalities
- text
- Published input price
- $1.50 / 1M tokens
- Published output price
- $7.50 / 1M tokens
- Pricing kind
- fixed
- Context tiers
- Tiered by context
MODEL MONUMENT
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Anthropic: Claude Sonnet 4.5 (batch). Balanced workload. Not independently rated. Evidence as of 28 Aug 2026.
Every price dimension
| Input | $1.50/M |
|---|---|
| Output | $7.50/M |
| Cached input | $0.150/M |
| Cache write | $1.88/M |
| Cache write 1h | $3.00/M |
| Web search | $0.01/call |
Past 200,000 tokens the price changes. Input goes to $3.00/M (2×) and output to $11.25/M. The headline rate does not apply to a long-context workload.
Independent scores
No independent benchmark has measured this model. Unrated is not a score of zero.
Best rankings by task
- asciiart #18of 87 1231
- mobileapps #26of 59 1184
- fullstack #32of 60 1074
Capability
| Context window | 1M |
|---|---|
| Max output | 64K |
| Input modes | text, image, file |
| Tool use | yes |
| Reasoning | optional |
| Knowledge cutoff | 2025-01-31 |
Provenance
| Price source | openrouter.ai |
|---|---|
| Fetched | 2026-08-28 |
| Quality data | unrated |
Claude Sonnet 4.5 is Anthropic’s most advanced Sonnet model to date, optimized for real-world agents and coding workflows. It delivers state-of-the-art performance on coding benchmarks such as SWE-bench Verified, with...
Questions this page answers
What beats Claude Sonnet 4.5 (batch)?
Claude Sonnet 4.5 (batch) has no independent quality score. Unrated is not a score of zero.
Does Claude Sonnet 4.5 (batch) have an independent quality score?
Claude Sonnet 4.5 (batch) has no independent quality score in this catalogue. Unrated is not a score of zero.
What does Claude Sonnet 4.5 (batch) cost?
$1.50/M in, $7.50/M out in this catalogue, as of the fetch date on this page. That is the API row, not a subscription.
Does this page use Artificial Analysis scores for Claude Sonnet 4.5 (batch)?
No. Artificial Analysis figures are not published here. Quality on this page is LMArena Elo where a score exists; otherwise the row is unrated.