Claude Sonnet 5.5
The 15th most-used model on the router over the last 7 days, with 1.4% of tokens. Weekly share peaked at 1.4% in the week of Oct 5, 2026, with 3.2T tokens processed since Sep 28, 2026.
- Launch
- Sep 28, 2026
- Context
- 1M tokens
- Modality
- text, image and file → text
- Reasoning
- yes
- License
- Proprietary
- Input
- $2.00 / 1M
- Output
- $10.00 / 1M
Weekly token share
Share of the router's weekly volume, since the first week with volume
See the numbers
| Week | Share |
|---|---|
| Oct 5, 2026 | 1.413% |
| Sep 28, 2026 | 0.467% |
Debuted in the week of Sep 28, 2026 and peaked at 1.4% 1 week later. The latest full week is the peak so far.
What this model is used for new
Tasks where the model ranks among the leaders, and its share of each
This model is not among the leaders in any of the 29 tasks classified in the Oct 11, 2026 snapshot. That does not mean it goes unused: the source lists only the largest models in each task.
Snapshot of the rolling 7-day window through Oct 11, 2026. Share: the model's tokens in the task over the task's total tokens. Weight: the task's share of classified volume.
Where to run it
Endpoints in the source's catalog, from cheapest to most expensive on input
| Provider | Input | Output | Context | Quantization | Zero retention |
|---|---|---|---|---|---|
| $2.00 | $10.00 | 1M | not reported | yes | |
| Amazon Bedrock | $2.00 | $10.00 | 1M | not reported | yes |
| Azure | $2.00 | $10.00 | 1M | not reported | no |
| Claude Platform on AWS | $2.00 | $10.00 | 1M | not reported | no |
| Anthropic | $2.00 | $10.00 | 1M | not reported | no |
| $2.20 | $11.00 | 1M | not reported | yes | |
| Azure | $2.20 | $11.00 | 1M | not reported | no |
| $2.20 | $11.00 | 1M | not reported | yes |
8 endpoints across 5 providers, with input from $2.00 to $2.20 per 1M tokens. 4 offer zero data retention.
Prices in US dollars per million tokens, from the latest archived endpoint catalog.
Benchmarks
Artificial Analysis indexes and benchmarks run by the source, with cost per task
GPQA Diamond 92.4%
$0.025 per task, 396 tasks. 15th of 160 evaluated. Median of evaluated models: 82.0%, $0.025 per task.
τ-bench verified, airline 78.0%
$0.16 per task, 100 tasks. 6th of 145 evaluated. Median of evaluated models: 70.8%, $0.062 per task.
Artificial Analysis indexes, exposed by the catalog; benchmarks run by the source and archived on Oct 12, 2026. The gray mark is the median of evaluated models.
Against the week's largest models
The five largest proprietary and five largest open-weights models over the last 7 days
| Model | Lab | 7-day share | Blended price | Context | Intelligence | Weeks in top 10 |
|---|---|---|---|---|---|---|
| Proprietary | ||||||
| GPT-6 LunaOpenAI | OpenAI | 4.1% | $0.20 | 1M | 38.1 | 3 |
| Claude Opus 5.5Anthropic | Anthropic | 2.9% | $8.00 | 1M | 57.6 | 1 |
| jev-1.13Typesafe | Typesafe | 2.0% | — | — | — | 0 |
| Claude Sonnet 5.5this pageAnthropic | Anthropic | 1.4% | $4.00 | 1M | 56.0 | 0 |
| Muse Spark 1.3 ContributorMeta | Meta | 1.3% | $0.125 | 1M | — | 0 |
| Open weights | ||||||
| DeepSeek V4.1 FlashDeepSeek | DeepSeek | 23.8% | $0.263 | 1M | 39.5 | 5 |
| GLM 5.3 FlashZ.ai (GLM) | Z.ai (GLM) | 7.1% | $0.317 | 1M | 41.8 | 7 |
| MiMo-V2.6-FlashXiaomi | Xiaomi | 6.7% | $0.175 | 1M | 37.9 | 3 |
| Step 5 PreviewStepFun | StepFun | 5.1% | $1.43 | 1M | — | 1 |
| Hy4 previewTencent | Tencent | 4.8% | $1.25 | 1M | — | 6 |
Share over the last 7 days (Oct 5, 2026 to Oct 11, 2026). Blended price in US dollars per million tokens, weighted 75% input and 25% output. A dash means the number is not published, not zero.