C1 is family of API endpoints that use different underlying LLM models.
The pricing is based on the model family and the amount of tokens used.
Pricing is based on model name irrespective of the kind of endpoint you use.
For example, using the embed endpoint with
c1-latest
is priced the same as using the visualize
endpoint with the same model.
Generally speaking, a model name is more than just the model of the LLM it uses. It also includes the version of the model, the set of components available for use in the UI, and any other metadata.
This guide is called “Models” and not “API Versions” because typically you’d pass
the API version to the model
parameter in the request to the LLM compatible
endpoints of C1.
C1 Model | LLM | State | Input Price | Output Price | Context Window | Max Output |
---|---|---|---|---|---|---|
c1/anthropic/claude-3.5-sonnet/v-20250617 | Sonnet 3.5 | Stable | $3.50/M tokens | $18.00/M tokens | 180K | 8192 |
c1/anthropic/claude-3.7-sonnet/v-20250617 | Sonnet 3.7 | Stable | $6.00/M tokens | $18.00/M tokens | 180K | 64K |
c1/anthropic/claude-sonnet-4/v-20250617 | Sonnet 4 | Stable | $6.00/M tokens | $18.00/M tokens | 180K | 64K |
c1-exp/openai/gpt-4.1/v-20250617 | GPT 4.1 | Experimental | $6.00/M tokens | $18.00/M tokens | 1M | 32K |
c1-latest | Sonnet 3.5 | Deprecated | $3.50/M tokens | $18.00/M tokens | 180K | 8192 |
c1-202504XX\* | Sonnet 3.5 | Deprecated | $3.50/M tokens | $18.00/M tokens | 180K | 8192 |
C1 is family of API endpoints that use different underlying LLM models.
The pricing is based on the model family and the amount of tokens used.
Pricing is based on model name irrespective of the kind of endpoint you use.
For example, using the embed endpoint with
c1-latest
is priced the same as using the visualize
endpoint with the same model.
Generally speaking, a model name is more than just the model of the LLM it uses. It also includes the version of the model, the set of components available for use in the UI, and any other metadata.
This guide is called “Models” and not “API Versions” because typically you’d pass
the API version to the model
parameter in the request to the LLM compatible
endpoints of C1.
C1 Model | LLM | State | Input Price | Output Price | Context Window | Max Output |
---|---|---|---|---|---|---|
c1/anthropic/claude-3.5-sonnet/v-20250617 | Sonnet 3.5 | Stable | $3.50/M tokens | $18.00/M tokens | 180K | 8192 |
c1/anthropic/claude-3.7-sonnet/v-20250617 | Sonnet 3.7 | Stable | $6.00/M tokens | $18.00/M tokens | 180K | 64K |
c1/anthropic/claude-sonnet-4/v-20250617 | Sonnet 4 | Stable | $6.00/M tokens | $18.00/M tokens | 180K | 64K |
c1-exp/openai/gpt-4.1/v-20250617 | GPT 4.1 | Experimental | $6.00/M tokens | $18.00/M tokens | 1M | 32K |
c1-latest | Sonnet 3.5 | Deprecated | $3.50/M tokens | $18.00/M tokens | 180K | 8192 |
c1-202504XX\* | Sonnet 3.5 | Deprecated | $3.50/M tokens | $18.00/M tokens | 180K | 8192 |