A pocket pet for talking to Codex, designed by GPT-6 Astra

What to buy to build your own version. OpenAI’s pet isn’t for sale and its exact parts aren’t public, so every product here is an example that matches what the video and drawing show, not the part OpenAI used.

Quantities are for one build. Unless marked source-specified, they are planning quantities; confirm the chosen configuration before ordering.

1. Qty. 1Plan / confirm
   Tool

   Enclosed desktop 3D printer (example: Bambu Lab P2S)

   Print the case and the internal parts that hold the components.

   OpenAI’s drawing calls for “calibrated fine-layer PLA”. A black enclosed desktop printer appears in the video, but its make and model aren’t readable. The P2S is an example of an enclosed printer that handles PLA, not the one OpenAI used.

   Sources & quantity basis

   Creator source. Planning quantity for one build; check the selected configuration.

   • Source
   • Supporting source
   Example part

   Example printer: Bambu Lab P2S

2. Qty. As neededPlan / confirm
   Required

   Black PLA filament (example: Bambu Lab PLA Basic, Black)

   Bezel and internal structure.

   Specified on OpenAI’s CODEXPET R4 drawing (“PLA · Black”).

   Sources & quantity basis

   Creator source. Planning quantity for one build; check the selected configuration.

   • Source
   Example part

   Example: Bambu Lab PLA Basic — choose Black

3. Qty. As neededPlan / confirm
   Optional

   Translucent PLA filament (example: Bambu Lab PLA Translucent, Purple)

   Outer shell in the colour of your choice.

   The finished pet has a translucent purple shell, and a purple spool is on the bench. Brand and grade are not shown.

   Sources & quantity basis

   Creator source. Planning quantity for one build; check the selected configuration.

   • Source
   Example part

   Example: Bambu Lab PLA Translucent — Purple shown

4. Qty. 1 batchPlan / confirm
   Required

   Circuit board manufacturing and assembly (example: JLCPCB PCB Assembly)

   The electronics. Astra placed and connected the parts to fit inside the case.

   You buy this as a service: upload the board design (from Astra or another AI model) and its parts list, and the factory makes and assembles the boards. OpenAI used a contract manufacturer it doesn’t name, and it “took a few revs” before the boards worked.

   Sources & quantity basis

   Creator source. Planning quantity for one build; check the selected configuration.

   • Source
   • Supporting source
   Example part

   Example service: JLCPCB SMT PCB Assembly

5. Qty. 1Source count
   Required

   1.54-inch 240×240 square colour display (example: Adafruit 3787)

   Shows the pet and Codex status.

   OpenAI’s case has a 29 × 29 mm screen window. A 1.54-inch square panel like this one fits that size; OpenAI hasn’t named the panel it used.

   Sources & quantity basis

   Creator source. Source-specified quantity.

   • Source
   • Supporting source
   Example part

   Example: Adafruit 1.54" 240×240 TFT (ST7789)

6. Qty. 1Plan / confirm
   Required

   Tactile push buttons (example: Adafruit 6 mm, 20-pack)

   Hold to talk to Codex.

   Lin describes a push-to-talk button. Three round bumps on the front of the shell may be buttons; their part numbers aren’t shown.

   Sources & quantity basis

   Creator source. Creator statement; count not specified.

   • Source
   Example part

   Example: Adafruit tactile switch 6 mm × 20

7. Qty. 1Plan / confirm
   Conditional

   Microphone (example: Adafruit I2S MEMS microphone)

   Hear your voice when you hold the button.

   The demo shows a spoken question and answer. The drawing has six 1.8 mm holes near the top that may be for sound. Whether the audio parts sit on the board or in a paired device isn’t stated.

   Sources & quantity basis

   Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

   • Source
   • Supporting source
   Example part

   Example: Adafruit I2S MEMS Microphone (SPH0645LM4H)

8. Qty. 1Plan / confirm
   Conditional

   Small speaker (example: Adafruit 8 Ω 0.5 W mini speaker)

   Speak Codex’s replies out loud.

   The demo shows a spoken question and answer. The drawing has six 1.8 mm holes near the top that may be for sound. Whether the audio parts sit on the board or in a paired device isn’t stated.

   Sources & quantity basis

   Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

   • Source
   • Supporting source
   Example part

   Example: Adafruit mini metal speaker, 8 Ω 0.5 W

9. Qty. 1Plan / confirm
   Conditional

   Rechargeable battery (example: 3.7 V 500 mAh LiPo)

   Power for a handheld device.

   Not disclosed by OpenAI. A small LiPo cell is a typical choice for a handheld; your board must include a charger and protection circuit for it.

   Sources & quantity basis

   Setup requirement — check against your configuration. Planning quantity for one build; check the selected configuration.

   • Source
   Example part

   Example: Adafruit LiPo 3.7 V 500 mAh

10. Qty. 1Plan / confirm
    Tool

    Computer with ChatGPT / Codex access to GPT-6 Astra

    Design the board, case and firmware, and run the Codex agents the pet talks to.

    OpenAI also used Astra’s computer use to work in its design tools. The PCB editor on screen isn’t identified.

    Sources & quantity basis

    Creator source. Planning quantity for one build; check the selected configuration.

    • Source
    • Supporting source

    Use your existing computer and an OpenAI plan that includes the model.

Source reviewed, not built or hands-on tested. This is a one-off research prototype, not a purchasable product.