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by Inflection

Inflection: Inflection 3 Pi.

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Cheapest input
$2.5/M
on OpenRouter
Cheapest output
$10.0/M
on OpenRouter
Fastest
26 tok/s
on OpenRouter
Hosted equiv.
~$3.6/hr
@ 100 tok/s on OpenRouter

Inflection 3 Pi powers Inflection's [Pi](https://pi.ai) chatbot, including backstory, emotional intelligence, productivity, and safety. It has access to recent news, and excels in scenarios like customer support and role

Hosted API only

No self-host path — closed weights.

Inflection: Inflection 3 Pi's weights aren't published. Use it via the access providers below.

Where to use it

Cheapest hosted endpoints.

Provider Access $/M in $/M out
OpenRouter api aggregator $2.5 $10.0 Launch ↗
Performance

Speed across providers.

Tokens/sec and time-to-first-token measured against the same prompt template on each provider's API.

Provider Tokens/sec TTFT Total
OpenRouter 25.9 3183 ms 4211 ms
FAQ

Frequently asked.

How do I run Inflection: Inflection 3 Pi?
Inflection: Inflection 3 Pi is a closed-source API model. The cheapest way to access it is through the API providers listed on this page (direct API, aggregators, and hosted chat UIs).
Where can I access Inflection: Inflection 3 Pi?
Inflection: Inflection 3 Pi is available via OpenRouter. Each access option lists its own pricing (per million tokens or hourly hosting).
How much does it cost to run Inflection: Inflection 3 Pi?
API pricing starts at $2.5/M input tokens and $10.0/M output tokens. Self-hosting cost depends on the GPU you rent — see the Run It Yourself tab.
Is Inflection: Inflection 3 Pi open-source or proprietary?
Inflection: Inflection 3 Pi is a proprietary model from Inflection. Access is API-only — there are no public weights to download.