OpenAI › GPT-6.1 Terra › Pricing
$1 / $5per 1M tokens in / out
$0.05cache read · −95%
$0.095per task at medium?
Price sheetper 1M tokens
| Input | $1 | OpenRouter |
| Output | $5 | |
| Cache read | $0.05 | −95% vs input |
| Cache write | $1.25 | +25% vs input |
| Context · max output | 1.1M · 128K | tokens |
OpenRouter advertised standard route; provider-level offers are separate.
Cost per task by effort?
non-thinking$0.1151
low$0.05556.2
mediumAPI default$0.09557.8
high$0.1358.5
xhigh$0.1959.9
max$0.4060.2
per taskAutomationBench-AA
Same price per token at every effort; the bill grows with reasoning tokens. max costs 4.2× medium for +2.4 points.
Where to buy1 provider · per 1M tokens
| Provider | Input | Output | Context |
|---|---|---|---|
| OpenRouter | $1 | $5 | 1.1M |
In OpenAI's line-upper 1M in / out
| GPT-5.4 Mini (2026-03-17) | $0.75 / $4.50 | −16% |
| o3 Mini High | $1.10 / $4.40 | −4% |
| o4 Mini High | $1.10 / $4.40 | −4% |
| GPT-6.1 Terra | $1 / $5 | this model |
| GPT-3.5 Turbo 16k | $3 / $4 | +63% |
| o3 | $2 / $8 | +75% |
| GPT-6.1 Sol | $2 / $10 | 2× |
Cheaper for the same workvs GPT-6.1 Terra at medium
| GPT-6 Luna max | -29% | score -8% | $0.068 |
| MiMo v2.6 Flash thinkingOpen | -35% | score -8% | $0.062 |
| Claude Haiku 5.5 high | -17% | score -8% | $0.079 |
| Agnes 2.5 Pro Beta | -93% | score -15% | $0.10 / $0.30 |
| GPT-5.6 Luna xhigh | -10% | score -16% | $0.085 |
Pricing questions
How much does GPT-6.1 Terra cost?›
$1 per 1M input tokens and $5 per 1M output tokens. Cached input is $0.05. One Intelligence Index task costs about $0.095 at the default effort.
Is GPT-6.1 Terra free to use?›
There is no free API tier.
How much does prompt caching save?›
Cache reads cost $0.05 per 1M, 95% below the input price. Writing to the cache costs $1.25 per 1M.
How does effort change the price?›
The price per token is the same at every effort. Higher effort spends more reasoning tokens: a task costs $0.11 at non-thinking, $0.055 at low, $0.095 at medium, $0.13 at high, $0.19 at xhigh, $0.40 at max.
What is a cheaper alternative to GPT-6.1 Terra?›
GPT-6 Luna at max effort costs -29% per task with a score -8% on AutomationBench-AA.