Step 3.5 Flash 2603 vs Step 5 Preview: API price and specs

Step 3.5 Flash 2603 is 90% cheaper than Step 5 Preview on input price.

Step 3.5 Flash 2603 is 89% cheaper than Step 5 Preview on output price.

Step 3.5 Flash 2603 is 90% cheaper than Step 5 Preview on a 1M-in / 200k-out workload.

Step 5 Preview has a 300% larger context than Step 3.5 Flash 2603.

Field	Step 3.5 Flash 2603	Step 5 Preview
Lowest input, per 1M	$0.10	$1.00 +900%
Median input, per 1M	$0.10	$1.00 +876%
Lowest output, per 1M	$0.30	$2.70 +800%
Median output, per 1M	$0.31	$2.70 +778.4%
Lowest unit price	—	—
Cost of 1M in + 200k out	$0.16	$1.54 +862.5%
Context	262K +75%	1M
Max output	256K +75.6%	1M
Providers	4 +77.8%	18
Regions	—	APAC, US
Accepts	text	audio, file, image, image/gif, image/jpeg, image/png, image/webp, text, video, video/mp4, video/quicktime, video/x-matroska
Returns	text	text
Type	Text models	Text models
Free option	no	yes
Cheapest provider	empiriolabs	deepinfra

Your own workload: how many tokens the model gets (input) and gives back (output) - for example, in a month. The "Cost" row of the table above is recalculated for these numbers, for each model.

Computed from current offers each time the page opens; the best value of a row is bold, the percent is how far behind the best.

Providers selling both

empiriolabs, stepfun, stepfun-ai, trustedrouter

Frequently asked questions

Which is cheaper, Step 3.5 Flash 2603 or Step 5 Preview?

Step 3.5 Flash 2603 is 90% cheaper than Step 5 Preview on input price. Step 3.5 Flash 2603 is 89% cheaper than Step 5 Preview on output price. Step 3.5 Flash 2603 is 90% cheaper than Step 5 Preview on a 1M-in / 200k-out workload.

Which has the larger context, Step 3.5 Flash 2603 or Step 5 Preview?

Step 3.5 Flash 2603: 262K tokens; Step 5 Preview: 1M tokens.

Where can I use both Step 3.5 Flash 2603 and Step 5 Preview?

empiriolabs, stepfun, stepfun-ai, trustedrouter