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OpenAI
sora-2-pro
Documentation
Documentation
Sora 2 Pro is OpenAI's higher-fidelity text-to-video model. Send a text prompt, get back an MP4 with motion, physics, and audio generated in the same pass. On GPTProto you call the Sora 2 Pro API with one key and one balance shared across 200+ models — no separate OpenAI developer account, and no usage-tier requirement to clear before the model unlocks.

$ 1.2

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video

$ 1.2

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Your request will cost$0per run, for$100you can run this model approximately0times
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Examples
Kinetic, high-octane FPV drone POV. Shot on an 8mm fisheye lens with extreme barrel distortion and erratic, unstable camera movements. A continuous seamless single-take careening at blistering speed through a disheveled US school classroom. Rows of desks are violently upended by an unseen telekinetic force. Thousands of exam papers swirl chaotically in the air, creating a volumetric vortex of white particles. Horrified students are seen screaming, ducking, and diving for cover to dodge flying debris. The camera smashes explosively through a windowpane, scattering shattered glass in slow-motion physics. Without breaking the shot, it transitions into a high-speed cinematic flight weaving tightly between towering red brick academic buildings. Dramatic, harsh high-contrast lighting: alternating between strobing fluorescent indoor lights and the intense, golden-orange glow of a harsh twilight sunset outdoors. Heavy motion blur, photorealistic physics, ultimate sense of warp speed, 4K.
Style: Hand-painted 2D/3D hybrid animation with soft brush textures, warm tungsten lighting, and a tactile, stop-motion feel. The aesthetic evokes mid-2000s storybook animation — cozy, imperfect, full of mechanical charm. Subtle watercolor wash and painterly textures; warm–cool balance in grade; filmic motion blur for animated realism.

Inside a cluttered workshop, shelves overflow with gears, bolts, and yellowing blueprints. At the center, a small round robot sits on a wooden bench, its dented body patched with mismatched plates and old paint layers. Its large glowing eyes flicker pale blue as it fiddles nervously with a humming light bulb. The air hums with quiet mechanical whirs, rain patters on the window, and the clock ticks steadily in the background.

Cinematography:
Camera: medium close-up, slow push-in with gentle parallax from hanging tools
Lens: 35 mm virtual lens; shallow depth of field to soften background clutter
Lighting: warm key from overhead practical; cool spill from window for contrast
Mood: gentle, whimsical, a touch of suspense

Actions:
- The robot taps the bulb; sparks crackle.
- It flinches, dropping the bulb, eyes widening.
- The bulb tumbles in slow motion; it catches it just in time.
- A puff of steam escapes its chest — relief and pride.
- Robot says quietly: "Almost lost it… but I got it!"

Background Sound:
Rain, ticking clock, soft mechanical hum, faint bulb sizzle.
Cinematic wide shot at golden hour, high cliff overlooking a vast valley with a shimmering river below, warm orange sunset light contrasting with deep blue shadows, lone figure in flowing coat standing at the cliff edge, wind dramatically blowing fabric and leaves, slow cinematic dolly-in towards the figure, ultra-detailed face partially lit by golden light, tear rolling down cheek, sunset reflection in eyes, atmospheric dust motes in air, volumetric light, highly detailed, 8 seconds, cinematic realism, epic and emotional tone
A warm and inviting 8-second lifestyle ad for a high-quality thermal bottle:
Opening: close-up of steaming coffee being poured into the cup, condensation on matte textured surface glistening under sunlight.
Camera pans to outdoor picnic scene on a wooden table, friends laughing and enjoying drinks.
Cut to product standing on the table, covered in droplets, against a background of nature.
Final moment: subtle zoom-in on logo with sun flare and tagline “Warmth Everywhere”.
Style: cozy lifestyle cinematics, 8K detail, natural soft lighting, warm color grading.

What is Sora 2 Pro

Sora 2 Pro is the Pro tier of OpenAI's Sora 2 video family. It targets higher resolution, longer clips, and stronger prompt adherence than the standard sora-2 model, with native audio produced alongside the video rather than added afterward.

What sets the Pro tier apart is consistency under motion. Fast camera moves and moving subjects hold detail where the standard model softens; 3D space and subject identity stay more stable from shot to shot. In blind testing by independent reviewers, Sora 2 Pro scored meaningfully higher than standard Sora 2 on realism and prompt accuracy — though the gap is narrower than the roughly 3× price difference between the tiers would suggest. The practical read: Pro earns its cost on output that ships, not on every draft.

Spec Value
Provider OpenAI
Model string sora-2-pro
Task Text-to-video and image-to-video
Input Text prompt; or starting image + prompt (i2v)
Output Watermark-free MP4 with synchronized audio
Sizes (on GPTProto) 720×1280, 1280×720, 1024×1792
Durations (on GPTProto) 4s, 8s, 12s, 16s, 20s
Resolution tiers 720p; 1024p (1024×1792)
Audio Native, synchronized
Generation mode Asynchronous (submit job, poll for result)
Watermark None — clean output via API
Image-to-video on GPTProto Yes — subpage /model/openai/sora-2-pro/image-to-video

Because generation is asynchronous, a request returns a job id rather than a finished file; you poll until the video is ready and then download the MP4. A 4–8 second clip typically renders in well under two minutes, though wall-clock time scales with duration, resolution, and queue load.

Sora 2 Pro use cases

Sora 2 Pro fits work where motion fidelity and synced audio matter more than per-clip cost:

  • Marketing hero shots. Short, cinematic product or brand clips where the camera move and lighting carry the message. Render the final at 1280×720 (landscape) or step up to 1024×1792 when you need the higher-resolution finish.
  • Social-first vertical video. 720×1280 at 8–12 seconds covers most short-form feeds, with synced ambient audio baked in so there's no separate sound pass.
  • Concept and pitch boards. Turn a written scene into a moving reference in minutes — faster and cheaper than a live shoot for early-stage client buy-in.
  • B-roll and establishing shots. Atmospheric filler (skylines, landscapes, interiors) that's expensive to film but quick to prompt.

A common pattern: draft and iterate prompts on the cheaper standard sora-2, then render only the keeper on sora-2-pro. You pay the Pro rate once, on the take that actually ships, instead of on every experiment.

Sora 2 vs Sora 2 Pro

Both models are live on GPTProto, so you can switch between them on the same key. Standard sora-2 is the cheaper draft tier; sora-2-pro is the higher-fidelity finish tier.

  sora-2 sora-2-pro
Resolution 720p 720p, 1024p
Audio Synchronized Synchronized
Relative quality Strong for drafts & social Higher fidelity, better motion stability
GPTProto price (720p, 4s) $0.40 $1.20
Per second (720p) $0.10 $0.30
Best for Iteration, high-volume drafting Client deliverables, hero shots

Practical workflow: draft and iterate prompts on sora-2 at $0.10/sec, then render the final on sora-2-pro. The quality gap is real but narrower than the 3× price gap implies, so reserve Pro for output that ships.

→ See the standard model: Sora 2

Switching from the official Sora 2 API

If you already call OpenAI's Sora 2 API, here's what changes and what doesn't.

What's the same: per-second rates ($0.30/sec at 720p, $0.50/sec at 1024p), the async submit-then-poll pattern, and watermark-free MP4 output.

What changes:

  • No OpenAI usage-tier gate. The official API only unlocks sora-2-pro once your OpenAI account reaches a paid usage tier (minimum top-up required). On GPTProto, fund one balance and the model is available.
  • One key across 200+ models. The same credential runs sora-2-pro, the standard sora-2, ByteDance Seedance 2.0, Kling, and your text models — one bill instead of separate accounts per provider.
  • Endpoints differ. Point requests at the GPTProto endpoints above, not OpenAI's. Auth is your GPTProto key.

The honest summary: you're not paying less per second — you're trading several provider accounts and a tier requirement for one balance and one key.

Sora 2 is being discontinued — plan your move

This matters more than any feature on the page, so here it is plainly: OpenAI discontinued the Sora consumer app on April 26, 2026, and the Sora API is scheduled to stop accepting requests on September 24, 2026, with no announced successor. GPTProto's Sora 2 and Sora 2 Pro access runs on top of OpenAI's, so it ends on the same date.

If you have a live integration, keep using this page through the wind-down — it's a clean bridge for a controlled migration rather than a hard cutover. If you're building something new, don't start it on Sora. The models that replace it run on the same GPTProto key, so moving is a one-line path change, not a rewrite: ByteDance Seedance 2.0 currently tops the independent quality benchmarks, Kling 3.0 leads on character consistency and 4K, and Vidu Q3 is the volume-and-cost play.

→ Read the full breakdown: Sora 2 Is Gone: 6 Real Alternatives for 2026

Sora 2 Pro Prompt Recipes

Sora 2 Pro rewards specific, camera-aware prompts. Three patterns that hold up:

Cinematic establishing shot

Wide aerial shot descending toward a coastal town at golden hour, warm low sunlight, gentle camera push-in, calm sea, soft ambient wind and distant gulls.

Why it works: a stated camera move ("descending", "push-in") plus a lighting cue ("golden hour", "warm low sunlight") gives the model a clear motion and mood target.

Product / object focus

Slow 360° orbit around a ceramic coffee cup on a marble counter, soft window light from the left, shallow depth of field, steam rising, quiet kitchen ambience.

Why it works: a single subject, an explicit motion path ("360° orbit"), and depth-of-field language keep the frame stable and the subject sharp.

Character action

A runner sprinting along a wet city street at night, neon reflections on the pavement, handheld camera tracking from the side, rain, synced footsteps and rain audio.

Why it works: naming the camera rig ("handheld", "tracking from the side") and the audio ("synced footsteps") leans into Sora 2 Pro's motion stability and native audio.

Tip: keep one primary subject and one primary camera move per clip. Stacking multiple subjects or cuts into a single prompt is where motion artifacts appear. These patterns also port directly to the alternative models — Seedance 2.0 and Kling 3.0 read the same camera and lighting cues.

 

How to Get a sora-2-pro API Key

Getting a sora-2-pro API key takes four steps and a few minutes. Create a free GPTProto account, add credits, generate your key, and make your first call — at $1.2 it's a cheaper sora-2-pro API key than going direct, and one key works across every model on the platform. Full sora-2-pro Documentation is in the docs.

Sign up

Sign up

Create your free GPT Proto account to begin. You can set up an organization for your team at any time.

Top up

Top up

Your balance can be used across all models on the platform, including sora-2-pro, giving you the flexibility to experiment and scale as needed.

Generate your API key

Generate your API key

In your dashboard, create an API key — you'll need it to authenticate when making requests to sora-2-pro.

Make your first API call

Make your first API call

Use your API key with our sample code to send a request to sora-2-pro via GPT Proto and see instant AI-powered results.

Get API Key

Frequently Asked Questions

Key questions and technical answers about sora-2-pro/text-to-video. Learn model basics, use cases, pricing, API integration, and security considerations.

What is sora-2-pro/text-to-video?

Sora 2 Pro is OpenAI's higher-fidelity video model. It turns a text prompt into an MP4 clip with motion, physics, and synchronized audio, at up to 1024p on GPTProto.

Which company developed Sora 2 Pro?

OpenAI. GPTProto provides API access to it alongside 200+ other models.

How does Sora 2 Pro differ from Sora 2?

Pro adds higher resolution (up to 1024p), steadier motion, and stronger prompt adherence. It costs about 3× the standard model at the same resolution ($0.30/sec vs $0.10/sec at 720p). Use sora-2 for drafts, sora-2-pro for final renders.

Is the Sora 2 Pro API unlimited?

No. Generation is billed per clip by size and duration, and requests are subject to rate limits. There is no unlimited tier — you pay for each generation, including retries.

Does Sora 2 Pro output have a watermark?

No. Output through the GPTProto API is watermark-free, ready for commercial use — unlike the Sora consumer app, which watermarked lower tiers.

How much does the Sora 2 Pro API cost?

From $1.20 per clip (720p, 4s). Cost scales with duration and resolution — see the pricing matrix above. The per-second rate matches OpenAI's published pricing.

How do I call Sora 2 Pro via API?

Submit a POST request with your prompt, size, and duration; you get back a job id. Poll the result endpoint until the status is succeeded, then download the MP4. See Quick Start.

Does Sora 2 Pro support image input?

Yes. Sora 2 Pro runs as two tasks on GPTProto: text-to-video and image-to-video. For i2v, supply a starting image URL plus a prompt and the model animates it. See the image-to-video subpage.

Why is Sora 2 no longer available — can I still use it?

OpenAI is sunsetting the Sora API on September 24, 2026; the consumer app already closed on April 26, 2026. You can keep calling Sora 2 Pro through GPTProto during the wind-down, but plan a migration before that date. See the alternatives guide.

Can I use Sora 2 Pro videos commercially? Any copyright risk?

API outputs are intended for commercial use. Avoid prompting real people's likenesses, trademarks, or copyrighted characters. Review GPTProto's terms for specifics.

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