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Runflow
GPT IMAGE 2 API

The most reliable GPT Image 2 API,with $500 in matched credits.

Best-in-class text rendering. Transparent backgrounds. No rate-limit walls. Same per-image price as OpenAI. Dollar-for-dollar credit match up to $500.

From $0.009Per image, same as OpenAI
No rate limitsBurst 10 images per call
Auto-failoverNo errors reach your users

SOUND FAMILIAR?

What breaks when you call GPT Image directly.

Same model, different reality once it's in production.

Rate-limit walls

OpenAI throttles aggressively. Your production spike returns 429 instead of an image. You scale latency, not quality.

Capacity errors

When the GPT Image endpoint is under load, your jobs queue or fail. Your users wait through someone else's traffic peak.

No quality visibility

OpenAI returns the image. No score on text rendering, transparency, or prompt adherence. Bad outputs reach users before you notice.

Glue everywhere

Polling loops, retry logic, token-vs-image billing math. Every team rebuilds the same scaffolding.

HOW IT WORKS

Three steps. Zero failures.

Step 01

Send your request

Same params as the OpenAI API. Swap the endpoint, keep your code.

Step 02

Auto-failover until it works

If a generation fails or rate-limits, we retry on our infrastructure. You never see the failure. You never pay for it.

Step 03

Sentinel scores the output

Text accuracy, prompt adherence, color, artifacts. Scores land in your dashboard so you know exactly what shipped.

Runflow API
WAITING
0ms
POST /v1/generate
"Professional headshot, studio lighting"
+1.2s
Provider timeout
GPU overloaded. No charge.
+1.2s
Auto-retry initiated
Transparent to your code. Zero latency penalty.
+3.4s
200 OK
Image delivered: cdn.runflow.io/gen/img_9a8b.png
+3.8s
Sentinel evaluating...

Evaluate

See what you are actually shipping.

Every GPT Image 2 generation through Runflow is evaluated by Sentinel. You get quality insights on every output: what went well, what went wrong, and where to improve your prompts.

openai / gpt-image-2
Output qualitySentinel

Evaluations

2,924

last 30 days

The total number of generations scored by Sentinel in this period.

Pass rate

89.53%

of all evaluations

The percentage of evaluations where all judges passed. Higher is better.

Avg score

0.91

out of 1.00

The average weighted score from 0 to 1 across all evaluations. Each judge contributes based on its configured weight.

Gate failures

20

0.7% of evaluations

Evaluations terminated early by a pre-check, for example no face detected or not-safe-for-work content. These never reached the full judge panel.

Failed judges

1,133

0.4 per evaluation

The total individual judge failures across all evaluations. One generation can fail multiple judges.

Regenerate rate

9.68%

lower is better

The percentage of evaluations where Sentinel recommended regeneration. Lower is better.
Success rate by categoryclick to inspect
1,133failed judges
Input scoring

Catches bad inputs before you spend on a generation.

Output scoring

Every result graded against the checks that matter.

Trace on every call

One ID ties the input, the score, and the retry together.

ACT ON THE SCORE

Improve quality and user experience at the same cost.

Sentinel scores every output on text rendering, prompt adherence, color match, and artifacts. Pick the mode that fits your pipeline.

Discard bad generations automatically.

Adds a few seconds. If text breaks, the color shifts, or the score is low, the output is discarded and a fresh generation is triggered with the failure mode flagged.

Broken text, off-prompt outputs, color drift caught before users see them
A few extra seconds, in exchange for guaranteed quality
Auto-retry with the failure mode passed back to the model
Guard evaluation
Nano Banana Pro
PASSED
94.2
Overall score
Face fidelity
96
Likeness match
93
Background clean
88
Artifact detection
97
Style consistency
91
img_3f2d58Face distortionRETRYING
img_3f2d91Retry successfulDELIVERED
WHY RUNFLOW

Built for GPT Image at scale.

No rate-limit walls

OpenAI throttles aggressively. Runflow absorbs spikes and retries on our infrastructure so 429s never reach your users.

Automatic failover

When a generation fails or capacity drops, Runflow retries automatically. Your users see images, not error states.

Best-in-class text rendering

GPT Image 2 leads the market on typography, signage, and controlled layouts. Use it where text-in-image quality is the make-or-break factor.

Transparent backgrounds on 1.5

GPT Image 1.5 returns native RGBA PNG output. Skip the alpha-cutout post-processing step entirely.

Sentinel analytics included

Every output scored for text accuracy, prompt adherence, color match, and artifacts. See your quality trends in a dashboard.

Free credits to prove it

Free credits on signup. Enough to run your own reliability test against OpenAI directly.

MODEL VARIANTS

GPT Image 2, GPT Image 2 Edit, and GPT Image 1.5. One API.

Every variant includes auto-failover and Sentinel quality analytics. Pricing scales with quality tier.

ModelCategoryLowMediumHigh
GPT Image 2 Text-to-image$0.009/image$0.034/image$0.133/image
GPT Image 2 (Edit) Image edit$0.009/image$0.034/image$0.133/image
GPT Image 1.5 Text-to-image + transparent BG$0.009/image$0.034/image$0.133/image

Enterprise-grade AI image generation API infrastructure.
Without the enterprise sales cycle.

Your images never touch our storage. Processing happens in isolated environments with automatic cleanup. Compliant by default.

SOC 2 Type II
ISO 27001· In progress (Q3 2026)
GDPR

SOC 2 Type II compliant.

Zero customer data retention

Images are processed and returned. We don’t store your customers’ data.

Isolated processing

Every job runs in its own sandboxed environment. No cross-contamination between customers.

99.9% uptime SLA

Multi-region infrastructure with automatic failover. GPU capacity is always available.

FAQ

GPT Image 2 API: common questions

Limited credit match

Match your first $500 in credits.

Deposit any amount in your first 30 days and we add a matching credit within 24 hours, up to $500 in total. Put $500, you get $500 back.

Stop hitting rate limits.
Start seeing quality.

Free credits on signup. Match your first $500 in credits, dollar for dollar.