> ## Documentation Index
> Fetch the complete documentation index at: https://prices.voicegateway.dev/llms.txt
> Use this file to discover all available pages before exploring further.

# Speech-to-speech pricing

> 6 S2S model(s) from 3 provider(s), cheapest first.

6 S2S model(s) from 3 provider(s). Realtime models that bill audio as tokens in both directions. All rates are US dollars per 1,000,000 tokens. Pick a vendor in the sidebar to see that vendor alone.

A model lands here only when it prices audio in **and** audio out. A chat model that merely accepts audio input stays under [LLM](/llm/all-models). Session-minute bundled pricing is not expressible in the current schema and is not represented here.

| Provider                | Model                           | Name                          | Audio in \$ / Mtok | Audio out \$ / Mtok | Cached audio in \$ / Mtok | Text in \$ / Mtok | Text out \$ / Mtok |                                          Source | Last verified |
| ----------------------- | ------------------------------- | ----------------------------- | -----------------: | ------------------: | ------------------------: | ----------------: | -----------------: | ----------------------------------------------: | ------------: |
| [Google](/s2s/google)   | `gemini-live-2.5-flash-preview` | gemini-live-2.5-flash-preview |                \$3 |                \$12 |                         - |             \$0.5 |                \$2 |      <Badge color="gray" size="sm">seed</Badge> |             - |
| [AWS Bedrock](/s2s/aws) | `amazon.nova-sonic-v1:0`        | Nova Sonic                    |              \$3.4 |              \$13.6 |                         - |            \$0.06 |             \$0.24 |      <Badge color="gray" size="sm">seed</Badge> |             - |
| [OpenAI](/s2s/openai)   | `gpt-4o-mini-realtime-preview`  | gpt-4o-mini-realtime-preview  |               \$10 |                \$20 |                     \$0.3 |             \$0.6 |              \$2.4 | <Badge color="green" size="sm">verified</Badge> |    2025-07-04 |
| [OpenAI](/s2s/openai)   | `gpt-realtime-mini`             | gpt-realtime-mini             |               \$10 |                \$20 |                     \$0.3 |             \$0.6 |              \$2.4 |      <Badge color="gray" size="sm">seed</Badge> |             - |
| [OpenAI](/s2s/openai)   | `gpt-realtime`                  | gpt-realtime                  |               \$32 |                \$64 |                     \$0.4 |               \$4 |               \$16 |      <Badge color="gray" size="sm">seed</Badge> |             - |
| [OpenAI](/s2s/openai)   | `gpt-4o-realtime-preview`       | gpt-4o-realtime-preview       |               \$40 |                \$80 |                     \$2.5 |               \$5 |               \$20 | <Badge color="green" size="sm">verified</Badge> |    2025-07-04 |

What `verified`, `imported`, and `seed` mean is on [How Fresh?](/how-fresh).