Is GPT-4.1 Nano or TTS 1 cheaper?
TTS 1 is cheaper ($0.15 / 10k chars per 10k chars) vs GPT-4.1 Nano ($0.1 / 1M tokens input / $0.4 / 1M tokens output). Actual cost depends on your input/output token mix — estimate it with the pricing calculator.
Model comparison
GPT-4.1 Nano vs TTS 1
Compare GPT-4.1 Nano (OpenAI) and TTS 1 (OpenAI) by price, context, capabilities, and latency.
Which should you pick?
- Price: TTS 1 is cheaper ($0.15 / 10k chars per 10k chars) vs GPT-4.1 Nano ($0.1 / 1M tokens input / $0.4 / 1M tokens output).
- Context: GPT-4.1 Nano has the larger context window (1M tokens).
- GPT-4.1 Nano adds: Streaming, Tool calling, JSON mode, Vision, Long context.
Side by side
GPT-4.1 Nano vs TTS 1 — full comparison
Compare price, provider, context, capabilities, latency, and source basis.
| Model | Provider | Input | Output | Context | Capabilities | Best for | Latency | Status | Source |
|---|---|---|---|---|---|---|---|---|---|
| GPT-4.1 Nanoopenai/gpt-4.1-nano | OpenAI | $0.1 / 1M tokens | $0.4 / 1M tokens | 1M | StreamingTool callingJSON modeVision | image understanding, multimodal chat | 844-2401ms | Catalog | Platform curated |
| TTS 1openai/tts-1 | OpenAI | $0.15 / 10k chars | — | — | General chat via OpenAI, API workloads | 0-0ms | Catalog | Platform curated |
FAQ
GPT-4.1 Nano vs TTS 1 FAQ
Which has a larger context window, GPT-4.1 Nano or TTS 1?
GPT-4.1 Nano is larger (1M tokens) vs — tokens.