diff --git a/server/modules/providers/list/opencode/opencode-models.provider.ts b/server/modules/providers/list/opencode/opencode-models.provider.ts
index 1b939256..0e5f7477 100644
--- a/server/modules/providers/list/opencode/opencode-models.provider.ts
+++ b/server/modules/providers/list/opencode/opencode-models.provider.ts
@@ -1,6 +1,6 @@
-import Database from 'better-sqlite3';
 import { spawn } from 'node:child_process';
 
+import Database from 'better-sqlite3';
 import crossSpawn from 'cross-spawn';
 
 import type { IProviderModels } from '@/shared/interfaces.js';
@@ -21,14 +21,46 @@ import {
 
 export const OPENCODE_FALLBACK_MODELS: ProviderModelsDefinition = {
   OPTIONS: [
-    { value: 'anthropic/claude-sonnet-4-5', label: 'Claude Sonnet 4.5' },
-    { value: 'anthropic/claude-opus-4-1', label: 'Claude Opus 4.1' },
-    { value: 'anthropic/claude-haiku-4-5', label: 'Claude Haiku 4.5' },
-    { value: 'openai/gpt-5.1', label: 'GPT-5.1' },
-    { value: 'openai/gpt-5.1-codex', label: 'GPT-5.1 Codex' },
-    { value: 'openai/gpt-5.4-mini', label: 'GPT-5.4 Mini' },
-    { value: 'google/gemini-2.5-pro', label: 'Gemini 2.5 Pro' },
-    { value: 'google/gemini-2.5-flash', label: 'Gemini 2.5 Flash' },
+    {
+      value: 'anthropic/claude-sonnet-4-5',
+      label: 'Claude Sonnet 4.5',
+      description: 'anthropic - anthropic/claude-sonnet-4-5',
+    },
+    {
+      value: 'anthropic/claude-opus-4-1',
+      label: 'Claude Opus 4.1',
+      description: 'anthropic - anthropic/claude-opus-4-1',
+    },
+    {
+      value: 'anthropic/claude-haiku-4-5',
+      label: 'Claude Haiku 4.5',
+      description: 'anthropic - anthropic/claude-haiku-4-5',
+    },
+    {
+      value: 'openai/gpt-5.1',
+      label: 'GPT-5.1',
+      description: 'openai - openai/gpt-5.1',
+    },
+    {
+      value: 'openai/gpt-5.1-codex',
+      label: 'GPT-5.1 Codex',
+      description: 'openai - openai/gpt-5.1-codex',
+    },
+    {
+      value: 'openai/gpt-5.4-mini',
+      label: 'GPT-5.4 Mini',
+      description: 'openai - openai/gpt-5.4-mini',
+    },
+    {
+      value: 'google/gemini-2.5-pro',
+      label: 'Gemini 2.5 Pro',
+      description: 'google - google/gemini-2.5-pro',
+    },
+    {
+      value: 'google/gemini-2.5-flash',
+      label: 'Gemini 2.5 Flash',
+      description: 'google - google/gemini-2.5-flash',
+    },
   ],
   DEFAULT: 'anthropic/claude-sonnet-4-5',
 };
@@ -36,8 +68,13 @@ export const OPENCODE_FALLBACK_MODELS: ProviderModelsDefinition = {
 const OPEN_CODE_MODELS_TIMEOUT_MS = 20_000;
 const MODEL_ID_LINE = /^[a-z0-9][a-z0-9._-]*\/[a-z0-9][a-z0-9._-]*$/i;
 const spawnFunction = process.platform === 'win32' ? crossSpawn : spawn;
+const DATE_TOKEN = /^\d{8}$/;
+const SIMPLE_NUMBER_TOKEN = /^\d$/;
+const VERSION_TOKEN = /^[a-z]\d+$/i;
+const NUMERIC_TOKEN = /^\d+(?:\.\d+)*$/;
+const SHORT_ACRONYM_TOKEN = /^[a-z]{2,3}$/;
 
-const parseOpenCodeModelsStdout = (stdout: string): string[] => {
+export const parseOpenCodeModelsStdout = (stdout: string): string[] => {
   const ids: string[] = [];
 
   for (const rawLine of stdout.split(/\r?\n/)) {
@@ -54,20 +91,90 @@ const parseOpenCodeModelsStdout = (stdout: string): string[] => {
   return [...new Set(ids)];
 };
 
+const formatDateToken = (token: string): string => (
+  `${token.slice(0, 4)}-${token.slice(4, 6)}-${token.slice(6, 8)}`
+);
+
+const formatModelToken = (token: string, nextToken?: string): string => {
+  const lower = token.toLowerCase();
+
+  if (VERSION_TOKEN.test(token)) {
+    return token.toUpperCase();
+  }
+
+  if (SHORT_ACRONYM_TOKEN.test(lower) && nextToken && NUMERIC_TOKEN.test(nextToken)) {
+    return token.toUpperCase();
+  }
+
+  return lower.charAt(0).toUpperCase() + lower.slice(1);
+};
+
+const formatOpenCodeModelSlug = (slug: string): string => {
+  const labelParts: string[] = [];
+  const dateParts: string[] = [];
+  const tokens = slug.split('-').filter(Boolean);
+
+  for (let index = 0; index < tokens.length; index += 1) {
+    const token = tokens[index];
+    const nextToken = tokens[index + 1];
+
+    if (DATE_TOKEN.test(token)) {
+      dateParts.push(formatDateToken(token));
+      continue;
+    }
+
+    if (SIMPLE_NUMBER_TOKEN.test(token) && nextToken && SIMPLE_NUMBER_TOKEN.test(nextToken)) {
+      labelParts.push(`${token}.${nextToken}`);
+      index += 1;
+      continue;
+    }
+
+    labelParts.push(formatModelToken(token, nextToken));
+  }
+
+  const label = (labelParts.join(' ').trim() || slug).replace(/^GPT\s+/, 'GPT-');
+  if (dateParts.length === 0) {
+    return label;
+  }
+
+  return `${label} (${dateParts.join(', ')})`;
+};
+
+const readOpenCodeModelParts = (id: string): { upstreamProvider: string; slug: string } => {
+  const separatorIndex = id.indexOf('/');
+  if (separatorIndex < 0) {
+    return {
+      upstreamProvider: '',
+      slug: id,
+    };
+  }
+
+  return {
+    upstreamProvider: id.slice(0, separatorIndex),
+    slug: id.slice(separatorIndex + 1),
+  };
+};
+
 const labelForOpenCodeModelId = (id: string): string => {
   const fallbackLabel = OPENCODE_FALLBACK_MODELS.OPTIONS.find((option) => option.value === id)?.label;
   if (fallbackLabel) {
     return fallbackLabel;
   }
 
-  const tail = id.includes('/') ? id.slice(id.indexOf('/') + 1) : id;
-  return tail.replace(/-/g, ' ');
+  const { slug } = readOpenCodeModelParts(id);
+  return formatOpenCodeModelSlug(slug);
 };
 
-const buildOpenCodeDefinitionFromIds = (ids: string[]): ProviderModelsDefinition => {
+const descriptionForOpenCodeModelId = (id: string): string => {
+  const { upstreamProvider } = readOpenCodeModelParts(id);
+  return upstreamProvider ? `${upstreamProvider} - ${id}` : id;
+};
+
+export const buildOpenCodeDefinitionFromIds = (ids: string[]): ProviderModelsDefinition => {
   const options: ProviderModelOption[] = ids.map((value) => ({
     value,
     label: labelForOpenCodeModelId(value),
+    description: descriptionForOpenCodeModelId(value),
   }));
 
   const defaultValue = options.find((option) => option.value === OPENCODE_FALLBACK_MODELS.DEFAULT)?.value
diff --git a/server/modules/providers/tests/opencode-models.test.ts b/server/modules/providers/tests/opencode-models.test.ts
new file mode 100644
index 00000000..c28ac0ef
--- /dev/null
+++ b/server/modules/providers/tests/opencode-models.test.ts
@@ -0,0 +1,73 @@
+import assert from 'node:assert/strict';
+import test from 'node:test';
+
+import {
+  buildOpenCodeDefinitionFromIds,
+  parseOpenCodeModelsStdout,
+} from '@/modules/providers/list/opencode/opencode-models.provider.js';
+
+test('OpenCode models provider parses plain CLI output and removes duplicates', () => {
+  const ids = parseOpenCodeModelsStdout(`
+opencode/big-pickle
+not a model
+anthropic/claude-opus-4-7-fast
+anthropic/claude-opus-4-7-fast
+openai/gpt-5.5-pro
+`);
+
+  assert.deepEqual(ids, [
+    'opencode/big-pickle',
+    'anthropic/claude-opus-4-7-fast',
+    'openai/gpt-5.5-pro',
+  ]);
+});
+
+test('OpenCode models provider formats frontend labels from provider-prefixed ids', () => {
+  const definition = buildOpenCodeDefinitionFromIds([
+    'opencode/deepseek-v4-flash-free',
+    'opencode/nemotron-3-super-free',
+    'anthropic/claude-3-5-sonnet-20241022',
+    'anthropic/claude-opus-4-7-fast',
+    'openai/gpt-5.4-mini-fast',
+    'openai/gpt-5.5-pro',
+    'newprovider/alpha-v12-special-20261231',
+  ]);
+
+  assert.deepEqual(definition.OPTIONS, [
+    {
+      value: 'opencode/deepseek-v4-flash-free',
+      label: 'Deepseek V4 Flash Free',
+      description: 'opencode - opencode/deepseek-v4-flash-free',
+    },
+    {
+      value: 'opencode/nemotron-3-super-free',
+      label: 'Nemotron 3 Super Free',
+      description: 'opencode - opencode/nemotron-3-super-free',
+    },
+    {
+      value: 'anthropic/claude-3-5-sonnet-20241022',
+      label: 'Claude 3.5 Sonnet (2024-10-22)',
+      description: 'anthropic - anthropic/claude-3-5-sonnet-20241022',
+    },
+    {
+      value: 'anthropic/claude-opus-4-7-fast',
+      label: 'Claude Opus 4.7 Fast',
+      description: 'anthropic - anthropic/claude-opus-4-7-fast',
+    },
+    {
+      value: 'openai/gpt-5.4-mini-fast',
+      label: 'GPT-5.4 Mini Fast',
+      description: 'openai - openai/gpt-5.4-mini-fast',
+    },
+    {
+      value: 'openai/gpt-5.5-pro',
+      label: 'GPT-5.5 Pro',
+      description: 'openai - openai/gpt-5.5-pro',
+    },
+    {
+      value: 'newprovider/alpha-v12-special-20261231',
+      label: 'Alpha V12 Special (2026-12-31)',
+      description: 'newprovider - newprovider/alpha-v12-special-20261231',
+    },
+  ]);
+});