WEBVTT 1 00:00:00.330 --> 00:00:01.680 So we got a Modelfile. 2 00:00:01.680 --> 00:00:05.490 How can we now build an actual model based on that file? 3 00:00:05.490 --> 00:00:09.690 Well, for that, Ollama gives us the create command, 4 00:00:09.690 --> 00:00:10.890 because, as we learned here, 5 00:00:10.890 --> 00:00:13.647 this creates a model from a Modelfile. 6 00:00:14.490 --> 00:00:16.680 Now, for that, you must make sure that, 7 00:00:16.680 --> 00:00:18.600 in your command line, in your terminal, 8 00:00:18.600 --> 00:00:21.840 you navigate into the folder where you got that Modelfile, 9 00:00:21.840 --> 00:00:24.150 which in my case is the case. 10 00:00:24.150 --> 00:00:26.910 And then you can run ollama create, 11 00:00:26.910 --> 00:00:31.200 then any name of your choice, like service-agent, 12 00:00:31.200 --> 00:00:32.940 but that is entirely up to you. 13 00:00:32.940 --> 00:00:36.120 That will be the name of the model you are creating. 14 00:00:36.120 --> 00:00:38.070 And then -f 15 00:00:38.070 --> 00:00:41.160 and then ./Modelfile. 16 00:00:41.160 --> 00:00:45.330 And here you simply specify the path to that Modelfile. 17 00:00:45.330 --> 00:00:47.820 And since here, for me, it sits in the same directory, 18 00:00:47.820 --> 00:00:49.290 it's a very simple path. 19 00:00:49.290 --> 00:00:51.060 If you had it in some other directory, 20 00:00:51.060 --> 00:00:53.580 you could specify the full absolute path 21 00:00:53.580 --> 00:00:55.053 to that Modelfile here. 22 00:00:56.580 --> 00:00:57.930 So now if you save that, 23 00:00:57.930 --> 00:01:01.317 it will build a new model based on that Modelfile. 24 00:01:02.571 --> 00:01:05.040 And therefore, if thereafter you run ollama list, 25 00:01:05.040 --> 00:01:07.293 you should see that model here. 26 00:01:08.550 --> 00:01:11.100 Now again, this size is kind of wrong 27 00:01:11.100 --> 00:01:14.070 because of course, this service-agent model, 28 00:01:14.070 --> 00:01:16.590 thanks to this command we just executed, 29 00:01:16.590 --> 00:01:18.480 is based on this Modelfile, 30 00:01:18.480 --> 00:01:20.970 which builds a model based on this Gemma model, 31 00:01:20.970 --> 00:01:24.450 and therefore Ollama will not technically copy that model, 32 00:01:24.450 --> 00:01:27.510 it will not copy the weights or parameters of that model, 33 00:01:27.510 --> 00:01:29.850 it will also not change them, by the way. 34 00:01:29.850 --> 00:01:31.710 Instead it will use that as a base 35 00:01:31.710 --> 00:01:35.580 and just adjust that metadata, so to say. 36 00:01:35.580 --> 00:01:38.640 So that these settings are always set 37 00:01:38.640 --> 00:01:41.340 when we now run our customized model. 38 00:01:41.340 --> 00:01:42.173 But under the hood, 39 00:01:42.173 --> 00:01:45.423 we're still using the unchanged Gemma 3 model. 40 00:01:46.770 --> 00:01:51.010 But of course therefore here I can ollama run service-agent 41 00:01:52.140 --> 00:01:56.073 like this and this will now load my own model. 42 00:01:57.150 --> 00:01:58.350 And here we also see 43 00:01:58.350 --> 00:02:01.920 that chat history we added to that model. 44 00:02:01.920 --> 00:02:04.410 And if I type /show system, I for example, 45 00:02:04.410 --> 00:02:06.210 also see that system message, 46 00:02:06.210 --> 00:02:08.277 which I added to that Modelfile. 47 00:02:09.180 --> 00:02:12.180 And that's therefore another maybe more convenient way 48 00:02:12.180 --> 00:02:16.410 of building customized models based on existing models, 49 00:02:16.410 --> 00:02:21.120 not by using /set and /save, which you can also do, 50 00:02:21.120 --> 00:02:22.770 which has the same effect, 51 00:02:22.770 --> 00:02:25.410 but instead by using such a Modelfile. 52 00:02:25.410 --> 00:02:28.230 And of course, the great thing about such a Modelfile 53 00:02:28.230 --> 00:02:30.540 is that you can also share it with other people. 54 00:02:30.540 --> 00:02:33.540 You can upload it to GitHub, share it through your website, 55 00:02:33.540 --> 00:02:35.520 and therefore allow other people 56 00:02:35.520 --> 00:02:37.470 that are also using Ollama 57 00:02:37.470 --> 00:02:41.910 to easily copy your customized model version. 58 00:02:41.910 --> 00:02:44.970 Now for completeness sake, I also wanna mention 59 00:02:44.970 --> 00:02:48.570 that when it comes to sharing customized versions of models, 60 00:02:48.570 --> 00:02:51.720 you can also use the ollama push command. 61 00:02:51.720 --> 00:02:54.990 And this pushes a model to a registry. 62 00:02:54.990 --> 00:02:58.560 A registry like the official Ollama models registry, 63 00:02:58.560 --> 00:03:00.270 for example. 64 00:03:00.270 --> 00:03:02.760 But that's not something I'll do in this course here, 65 00:03:02.760 --> 00:03:04.650 not something you have to do. 66 00:03:04.650 --> 00:03:05.640 As I just explained, 67 00:03:05.640 --> 00:03:08.220 if you wanna share a customized version of a model, 68 00:03:08.220 --> 00:03:10.440 you could also just share the Modelfile 69 00:03:10.440 --> 00:03:13.260 and have people create that model based on 70 00:03:13.260 --> 00:03:16.200 that Modelfile locally on their systems. 71 00:03:16.200 --> 00:03:18.900 But it's worth noting that ollama push exists 72 00:03:18.900 --> 00:03:20.880 and can therefore be an interesting way 73 00:03:20.880 --> 00:03:24.153 of sharing an adjusted model with other people.