Pricingby GlyphGPT-6.1 Terra is the mid-tier model in OpenAI's GPT-6.1 series, priced below GPT-6.1 Sol.
Ways to buy 3
| Way to buy | Input | Output | In / out per 1M | Cached | Vs list |
|---|---|---|---|---|---|
flex, cheapest · cached $0.025 | $0.5 | $2.5 | $0.5 / $2.5-50% vs list | $0.025 | -50% vs list |
The lab's own API · cached $0.05 | $1 | $5 | $1 / $5List price | $0.05 | List price |
fast · cached $0.1 | $2 | $10 | $2 / $10+100% vs list | $0.1 | +100% vs list |
USD per 1M tokens; batch $0.5 in, $2.5 out on the lab's API. Regions are separate routes.
Through a gateway
Your own numbers100M input and 20M output tokens a month: $200.00 direct.
Kong AI Gateway$200.00+0%
LiteLLM$200.00+0%
Vercel AI Gateway$200.00+0%
Requesty$210.00+5%
Eden AI$211.00+5.5%
OpenRouter$211.00+5.5%
Cloudflare AI GatewayNot offeredNot offered
HeliconeNot offeredNot offered
Martian GatewayNot offeredNot offered
Neon AI GatewayNot offeredNot offered
A dash: not on that gateway's own model list. No published token fee: 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 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. |
OpenAI · 1.05MCheapest: $0.1 on OpenAI (flex) | $0.1 | $0.5 | $0.1 / $0.5 | $0.2 | 1.05M | $0.1 on OpenAI (flex) | · | GPT-6 Luna is the fast, cost-efficient model in OpenAI's GPT-6 series, positioned below GPT-6 Sol. |
Google · 1MCheapest: $2 on Google Gemini API (flex) | $2 | $10 | $2 / $10 | $4 | 1M | $2 on Google Gemini API (flex) | · | Gemini 4 Argon is Google's flagship reasoning model, built for complex software engineering, deep mathematical and scientific problem solving, and autonomous multi-step agents. |
Anthropic · 1M | $2 | $10 | $2 / $10 | $4 | 1M | Lab list price | · | Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. |
Google · 1MCheapest: $0.75 on Google Gemini API (flex) | $0.75 | $3.75 | $0.75 / $3.75 | $1.5 | 1M | $0.75 on Google Gemini API (flex) | · | Gemini 3.8 Flash is Google's most intelligent Flash model with significant gains from 3.7 Flash across software engineering, agentic tasks, and multi-step reasoning. |
Meta · 1M | $1.25 | $4.25 | $1.25 / $4.25 | $2 | 1M | Lab list price | · | Muse Spark 1.1 is a multimodal reasoning model from Meta, built for agentic tasks. |
About GPT-6.1 Terra
Takes files, image, text in and returns text. First listed Oct 27, 2026. Up to 128K output tokens. Blended price $2 per 1M tokens at 3 input to 1 output. Overall score 1 on leadersboard.fru.dev (rank 40). Model id gpt-6-1-terra.
Price history
List price since Oct 27, 2026, from daily reads of the OpenRouter catalog.
Questions
How much does GPT-6.1 Terra cost?
$1 per million input tokens and $5 per million output tokens, with cached input at $0.05, or $0.5 and $2.5 through the Batch API.
What is the context window of GPT-6.1 Terra?
1.05M tokens, with up to 128K tokens of output.
Where is GPT-6.1 Terra cheapest?
Of 3 routes tracked, OpenAI is cheapest at $0.5 input and $2.5 output per million tokens.