List price
Input / 1M$3.00Output / 1M$15.00Cache read / 1M$0.30Blended$12.000Value index41.4Last move—
models.dev · MIT · retrieved Oct 23, 2026
Anthropic
Claude Sonnet 4.5 (latest)
Claude Sonnet 4.5 (latest) is listed by Anthropic at $3 input and $15 output per million tokens. The recorded context window is 200,000 tokens. Release date on file: 2025-09-29. LMArena's text board published 2026-10-20 gives it an overall rating of 1438.5 (rank 78, 82,669 votes). Price source: models.dev (MIT).
- Context19
- Inverse price98
- Arena77
- GPQA—
- Tools100
- Modalities67
Price history
Input and output list price. A missing day stays a gap in the line. The series is not a quality history.
Benchmarks
LMArena is CC-BY-4.0. Epoch scores, including LiveBench where Epoch publishes it, are CC-BY-4.0. A blank cell means this snapshot has no match. Nothing here is estimated.
| Benchmark | Score | Detail | Source |
|---|---|---|---|
| LMArena overall | 1438.5 | rank 78 · 82,669 votes | LMArena leaderboard dataset · CC-BY-4.0 |
| LMArena coding | 1488.2 | rank 38 · 19,940 votes | LMArena leaderboard dataset · CC-BY-4.0 |
| LMArena math | 1448.5 | rank 73 · 5,075 votes | LMArena leaderboard dataset · CC-BY-4.0 |
| GPQA Diamond | — | — | — |
| LiveBench | — | — | — |
| SWE-bench Verified | — | — | — |
| Epoch Capability Index | 146.74 | 145.03–148.31 | Epoch AI Capabilities & benchmarking · CC-BY-4.0 |
Provider prices
The list row is the price used for the value index. Other rows are the same model id on models.dev, plus the LiteLLM catalog price when we have one. A split quote is kept beside the list price.
| Quote | Provider | Input / 1M | Output / 1M | Blended | Source |
|---|---|---|---|---|---|
| List | Anthropic | $3.00 | $15.00 | $12.000 | models.dev · MIT |
| Also listed | Merge Gateway | $3.00 | $15.00 | $12.000 | models.dev · MIT |
| Also listed | Impossibl | $3.00 | $15.00 | $12.000 | models.dev · MIT |
| Also listed | NanoGPT | $3.00 | $15.00 | $12.000 | models.dev · MIT |
| LiteLLM | anthropic | $3.00 | $15.00 | $12.000 | LiteLLM model_prices_and_context_window.json · MIT |
Spec
Context200,000Max output64,000Inputtext, image, pdfOutputtextReleased2025-09-29Open weightsNo
Spec fields are from the models.dev row for Anthropic.