Anthropic: Claude Sonnet 4.5 (batch)
Claude Sonnet 4.5 from Anthropic is designed for extensive text, image, and file processing with a context length of 1 million tokens. It supports reasoning and tools integration, enabling more complex tasks, though structured output support remains unimplemented. This model could be shortlisted by those needing robust multimodal handling at scale, given its comprehensive input modalities and reasoning capabilities. Its blended benchmark score of 64.8 across four metrics suggests strong performance, albeit with some areas needing improvement. With a pricing structure of $1.5 per million input tokens and $7.5 per million output tokens, it offers flexibility but comes at a cost that may not be ideal for all budgets, particularly considering its current ranking in the benchmark coverage category.
Benchmark results
Independent, published benchmarks. Blended score 64.8 across 4 benchmarks, last refreshed 2026-07-30. How scoring works →
| Benchmark | Measures | Score |
|---|---|---|
| AI Index | broad capability composite | 48.3 |
| AI Index Coding | software engineering tasks | 86.0 |
| AI Index Agentic | multi-step tool-using tasks | 40.6 |
| EQ-Bench | emotional understanding in dialogue | 72.2 |
- Model ID
- anthropic/claude-sonnet-4.5:batch
- Vendor
- anthropic
- Released
- September 2025
- Tokenizer
- Claude
- Input Modalities
- text, image, file
- Output Modalities
- text
- Max Output
- 64,000 tokens
- Tool Calling
- ✓ supported
- Structured Output
- ✓ supported
- Reasoning Mode
- ✓ supported
- Vision
- ✓ accepts images
- Audio
- no
- Moderated
- yes
What it costs in practice
Computed from the current $1.50/M input and $7.50/M output rates. Run your own numbers →
| Job | Tokens | Cost |
|---|---|---|
| Summarize a 50-page report | 30k in / 1.5k out | $0.06 |
| Classify 1,000 customer emails | 500k in / 50k out | $1.12 |
| A month of a busy support chatbot | 5M in / 2M out | $22.50 |
Category rankings
Where Anthropic: Claude Sonnet 4.5 (batch) places across the 11 categories it ranks in. How we rank →
| # | Category | Score |
|---|---|---|
| #14 | Code DocumentationCode · of 25 ranked | 143 |
| #17 | Transcript CleanupWriting · of 25 ranked | 143 |
| #20 | Long-Document SummarizationWriting · of 25 ranked | 160 |
| #20 | Long-Context Q&AAgents · of 25 ranked | 155 |
| #22 | Meeting NotesBusiness · of 25 ranked | 150 |
| #23 | CSV / Spreadsheet CleanupData · of 25 ranked | 153 |
| #23 | Character RoleplayPersonal · of 25 ranked | 149 |
| #24 | Code RefactoringCode · of 25 ranked | 163 |
| #24 | History TutoringEducation · of 25 ranked | 143 |
| #24 | RAG PipelinesAgents · of 25 ranked | 163 |
| #25 | RFP ResponseBusiness · of 25 ranked | 172 |
Similar models
Anthropic: Claude Sonnet 5
Anthropic: Claude Sonnet 5 (batch)
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Anthropic: Claude Opus 4.7 (batch)
Anthropic: Claude Sonnet 4.6
Anthropic: Claude Opus 4.6 (batch)
Quick answers
- How much does Anthropic: Claude Sonnet 4.5 (batch) cost?
- $1.50 per million input tokens and $7.50 per million output tokens.
- What is Anthropic: Claude Sonnet 4.5 (batch)'s context window?
- 1,000,000 tokens, roughly 1,500 pages of text in a single request.
- Does Anthropic: Claude Sonnet 4.5 (batch) support tool calling?
- It supports tool calling, structured output, a reasoning mode.
- Can Anthropic: Claude Sonnet 4.5 (batch) process images?
- Yes, it accepts image input.