Pricingby GlyphGPT-5-Nano is the smallest and fastest variant in the GPT-5 system, optimized for developer tools, rapid interactions, and ultra-low latency environments.
Ways to buy 4
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
flex, cheapest · cached $0.0025 | $0.025 | $0.2 | $0.025 / $0.2-50% vs list | $0.0025 | -50% vs list |
The lab's own API · cached $0.005 | $0.05 | $0.4 | $0.05 / $0.4List price | $0.005 | List price |
Default region · cached $0.01 | $0.05 | $0.4 | $0.05 / $0.4Same as list | $0.01 | Same as list |
swedencentral · cached $0.011 | $0.055 | $0.44 | $0.055 / $0.44+10% vs list | $0.011 | +10% vs list |
USD per 1M tokens; batch $0.025 in, $0.2 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $13.00 direct.
Helicone$13.00+0%
Kong AI Gateway$13.00+0%
LiteLLM$13.00+0%
Neon AI Gateway$13.00+0%
Vercel AI Gateway$13.00+0%
Cloudflare AI Gateway$13.65+5%
Requesty$13.65+5%
Eden AI$13.71+5.5%
OpenRouter$13.71+5.5%
No published token fee: Martian Gateway, Portkey, TrueFoundry AI Gateway.
Related models
| In / out per 1M | Cheapest route | |||||||
|---|---|---|---|---|---|---|---|---|
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol. |
OpenAI · 1.05MCheapest: $1 on OpenAI (flex) | $1 | $5 | $1 / $5 | $2 | 1.05M | $1 on OpenAI (flex) | · | GPT-6.1 Terra Pro is the same underlying model as GPT-6.1 Terra, served with reasoning.mode set to pro for higher-quality responses on complex tasks. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. |
OpenAI · 1.05MCheapest: $2 on OpenAI (flex) | $2 | $10 | $2 / $10 | $4 | 1.05M | $2 on OpenAI (flex) | · | GPT-6.1 Sol Pro is the same underlying model as GPT-6.1 Sol, served with reasoning.mode set to pro for higher-quality responses on complex tasks. |
DeepSeek · 1MCheapest: $0.081 on Particle AI (us-flex) | $0.15 | $0.6 | $0.15 / $0.6 | $0.262 | 1M | $0.081 on Particle AI (us-flex) | · | DeepSeek V4.1 Flash 1017 is the October 17, 2026 snapshot of DeepSeek V4.1 Flash, served by DeepSeek under the deepseek-flash API model name. |
DeepSeek · 1M | $0.045 | $0.3 | $0.045 / $0.3 | $0.109 | 1M | on InferenceNet (fp8) | · | DeepSeek V4.1 Flash is a sparse mixture-of-experts model from DeepSeek, and the first built on the company's Causal Encoder-Decoder (CED) architecture. |
Anthropic · 1M | $0.1 | $0.5 | $0.1 / $0.5 | $0.2 | 1M | Lab list price | · | Claude Haiku 5.5 is Anthropic's small, fast model for high-volume, cost-sensitive work such as summarization, subagents, and browser use. |
Cohere · 128K | $0.12 | Free | $0.12 / Free | $0.09 | 128K | Lab list price | · | Embed 5 Pro is the higher-accuracy tier of Cohere's Embed 5 family of multimodal embedding models (about 2.4B parameters). |
About GPT-5 Nano
Takes text, image, files in and returns text. First listed Aug 12, 2025. Up to 128K output tokens. Blended price $0.138 per 1M tokens at 3 input to 1 output. Model id gpt-5-nano.
Price history
List price since Aug 12, 2025, from Internet Archive snapshots of the OpenRouter catalog, then daily reads.
GPT-5 Nano
OpenAI cut its API price: cached input $0.01 to $0.005 per 1M tokens.
OpenAI raised its API price: cached input $0.005 to $0.01 per 1M tokens.
Questions
How much does GPT-5 Nano cost?
$0.05 per million input tokens and $0.4 per million output tokens, with cached input at $0.005, or $0.025 and $0.2 through the Batch API.
What is the context window of GPT-5 Nano?
400K tokens, with up to 128K tokens of output.
Where is GPT-5 Nano cheapest?
Of 4 routes tracked, OpenAI is cheapest at $0.025 input and $0.2 output per million tokens.