AI image models · compared

GPT Image 2.6 vs GPT Image 2.5

GPT Image 2.6 and GPT Image 2.5 are both AI image models that run on one varg API key. This page puts what the varg catalog states about each side by side: the price, how it is billed, what it takes and the typical time. It ranks neither on quality.

GPT Image 2.6
From $0.03 per run from $0.03/image
GPT Image 2.5
From $0.01 per run from $0.01/image

Every model is billed at its provider's price with no markup, from one credit balance: 1 credit is $0.01.

GPT Image 2.6 vs GPT Image 2.5: side by side

Every row is read from the varg catalog and each model's input schema. A "from" price is the cheapest request the catalog states for that model, at its own cheapest settings. For the exact price of a request, send its body to POST https://api.varg.ai/v2/estimate.

GPT Image 2.6 vs GPT Image 2.5
FactGPT Image 2.6GPT Image 2.5
Made byOpenAIOpenAI
Takes and makesText to image, Image to imageText to image, Image to image
PriceFrom $0.03 per runFrom $0.01 per run
Rates on the cheapest routeQuality low: $0.03/image; Quality medium: $0.05/image; Quality high: $0.06/image; Other: $0.06/imageQuality low: $0.01/image; Quality medium: $0.02/image; Quality high: $0.06/image; Quality xhigh: $0.10/image; Quality max: $0.22/image; Other: $0.06/image
Billedper imageper image
Typical time~15 s~30 s
Routes4 on fal4 on fal
Model idgpt_image_2_6gpt_image_2_5

Which to pick

Each line is a difference between two rows of the table. None of it says which model's output looks better: that depends on the prompt.

Pick GPT Image 2.6 when

  • you want the shorter typical wait: ~15 s, against ~30 s, by the catalog's estimates.

Pick GPT Image 2.5 when

  • you want the lower starting price: from $0.01 per run, against from $0.03 per run, each at the model's own cheapest settings.
  • you want the lower starting rate: from $0.01/image, against from $0.03/image; the table gives each model's rate by setting.
  • your request sets quality low: its cheapest route charges $0.01/image there, against $0.03/image.
  • your request sets quality medium: its cheapest route charges $0.02/image there, against $0.05/image.

Call GPT Image 2.6 and GPT Image 2.5

One endpoint and one API key for both: POST https://api.varg.ai/v2/tools/image/call with Authorization: Bearer $VARG_API_KEY. It answers 202 with a job right away; poll GET /v2/jobs/{id} until its status is completed.

GPT Image 2.6

POST /v2/tools/image/call
curl -X POST https://api.varg.ai/v2/tools/image/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gpt_image_2_6",
  "prompt": "A photorealistic product photo of a coffee bag labeled \"Summit Roast\" with mountain artwork, on a rustic wooden table"
}'
vargai
vargai call_tool --tool image '{"model":"gpt_image_2_6","prompt":"A photorealistic product photo of a coffee bag labeled \"Summit Roast\" with mountain artwork, on a rustic wooden table"}'

GPT Image 2.5

POST /v2/tools/image/call
curl -X POST https://api.varg.ai/v2/tools/image/call \
  -H "Authorization: Bearer $VARG_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{
  "model": "gpt_image_2_5",
  "prompt": "A photorealistic product photo of a coffee bag labeled \"Summit Roast\" with mountain artwork, on a rustic wooden table"
}'
vargai
vargai call_tool --tool image '{"model":"gpt_image_2_5","prompt":"A photorealistic product photo of a coffee bag labeled \"Summit Roast\" with mountain artwork, on a rustic wooden table"}'

How billing works

Every model is billed at its provider's price with no markup, from one credit balance: 1 credit is $0.01. varg's fee is on the top-up, not on the run: 5.5% of the credits you buy ($0.80 at the least), or 8% for a team workspace. Pricing

GPT Image 2.6 vs GPT Image 2.5: questions

Which is cheaper, GPT Image 2.6 or GPT Image 2.5?
GPT Image 2.5 starts lower: from $0.01 per run, against from $0.03 per run for GPT Image 2.6. By starting rate, GPT Image 2.5 is lower: GPT Image 2.6 from $0.03/image, GPT Image 2.5 from $0.01/image. Those are each model's cheapest settings, and the price of a request depends on what it asks for: the table lists each model's rates. With quality low, GPT Image 2.5 is lower: GPT Image 2.6 $0.03/image, GPT Image 2.5 $0.01/image, each on its cheapest route. With quality medium, GPT Image 2.5 is lower: GPT Image 2.6 $0.05/image, GPT Image 2.5 $0.02/image, each on its cheapest route. For the exact price of a request before you run it, send the same body to POST https://api.varg.ai/v2/estimate.
Can I use GPT Image 2.6 and GPT Image 2.5 with one API key?
Yes. Both run on varg behind POST https://api.varg.ai/v2/tools/image/call with one API key and one credit balance: send "model": "gpt_image_2_6" or "model": "gpt_image_2_5". Every model is billed at its provider's price with no markup, from one credit balance: 1 credit is $0.01.

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