Add Support for the GPT 5.3 Codex and the Opus 4.6

Author: Shashikant86

CHANGELOG.md

@@ -5,6 +5,19 @@ All notable changes to SuperQode will be documented in this file.
 The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
 and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
 
+## [0.1.11] - 2026-02-07
+
+### Fixed
+
+- OpenAI BYOK routing for newer Codex models (`gpt-5.3-codex`) with provider-qualified model handling.
+- OpenAI BYOK fallback behavior when account/model rollout differs (retry path to compatible Codex model IDs).
+- BYOK streaming empty-response fallback to non-streaming completion to avoid silent failures.
+
+### Changed
+
+- Updated BYOK + ACP model catalogs to include `gpt-5.3-codex` and `claude-opus-4-6` and highlight them as latest/new in picker logic.
+- Refreshed default model recommendations and aliases for OpenAI/Anthropic.
+
 ## [0.1.9] - 2026-01-31
 
 ### Added

docs/providers/byok.md

@@ -25,7 +25,7 @@ export ANTHROPIC_API_KEY=sk-ant-...
 superqode providers test anthropic
 
 # 3. Connect
-superqode connect byok anthropic claude-sonnet-4
+superqode connect byok anthropic claude-opus-4-6
 ```
 
 ---
@@ -45,7 +45,7 @@ superqode connect byok anthropic claude-sonnet-4
 
 | Model | Best For |
 |-------|----------|
-| `claude-opus-4-5` | Complex analysis |
+| `claude-opus-4-6` | Complex analysis (latest/new) |
 | `claude-sonnet-4-5` | Balanced performance |
 | `claude-sonnet-4` | General use |
 | `claude-haiku-4-5` | Fast, cost-effective |
@@ -56,11 +56,12 @@ superqode connect byok anthropic claude-sonnet-4
 
 ```bash
 export OPENAI_API_KEY=sk-...
-superqode connect byok openai gpt-4o
+superqode connect byok openai gpt-5.3-codex
 ```
 
 | Model | Best For |
 |-------|----------|
+| `gpt-5.3-codex` | Coding agent workloads (latest/new) |
 | `gpt-4o` | General use |
 | `gpt-4o-mini` | Cost-effective |
 | `o1` | Complex reasoning |
@@ -184,13 +185,15 @@ providers:
     api_key_env: ANTHROPIC_API_KEY
     recommended_models:
       - claude-opus-4-5
+      - claude-opus-4-6
       - claude-sonnet-4-5
       - claude-sonnet-4
       - claude-haiku-4-5
 
   openai:
     api_key_env: OPENAI_API_KEY
     recommended_models:
+      - gpt-5.3-codex
       - gpt-4o
       - gpt-4o-mini
       - o1
@@ -213,12 +216,12 @@ team:
         security_tester:
           mode: byok
           provider: anthropic
-          model: claude-sonnet-4
+          model: claude-opus-4-6
 
         performance_tester:
           mode: byok
           provider: openai
-          model: gpt-4o
+          model: gpt-5.3-codex
 ```
 
 ---

pyproject.toml

@@ -1,6 +1,6 @@
 [project]
 name = "superqode"
-version = "0.1.10"
+version = "0.1.11"
 description = "SuperQode: Super Quality Engineering for Agentic Coding Teams"
 readme = "README.md"
 requires-python = ">=3.12"

src/superqode/__init__.py

@@ -30,4 +30,4 @@
     "sidebar",
 ]
 
-__version__ = "0.1.10"
+__version__ = "0.1.11"

src/superqode/acp_discovery.py

@@ -598,6 +598,13 @@ async def _get_models(self, agent: DiscoveredAgent) -> List[AgentModel]:
             ],
             # Claude Code - Anthropic's models
             "claude-code": [
+                AgentModel(
+                    id="claude-opus-4-6",
+                    name="Claude Opus 4.6",
+                    provider="anthropic",
+                    description="Latest Claude Opus model",
+                    context_window=1000000,
+                ),
                 AgentModel(
                     id="claude-sonnet-4-20250514",
                     name="Claude Sonnet 4",
@@ -619,6 +626,13 @@ async def _get_models(self, agent: DiscoveredAgent) -> List[AgentModel]:
             ],
             # Codex - OpenAI's models
             "codex": [
+                AgentModel(
+                    id="gpt-5.3-codex",
+                    name="GPT-5.3 Codex",
+                    provider="openai",
+                    description="Latest Codex model for coding",
+                    context_window=256000,
+                ),
                 AgentModel(
                     id="o3", name="O3", provider="openai", description="Latest reasoning model"
                 ),

src/superqode/agent/loop.py

@@ -785,15 +785,64 @@ async def run_streaming(
                 # Flush thinking buffer before handling error
                 if thinking_buffer.strip() and self.on_thinking:
                     await self.on_thinking(thinking_buffer.strip())
-
-                error_msg = str(e)
-                error_type = type(e).__name__
-                # Yield error message so it's displayed
-                yield f"\n\n[Error: {error_type}] {error_msg}"
-                # Don't return immediately - let the error be displayed
-                # But mark that we had an error so we don't continue the loop
-                full_content = f"[Error: {error_type}] {error_msg}"
-                return
+                # Streaming can fail for some provider/model combinations even when
+                # a non-streaming request would succeed. Retry once before failing.
+                try:
+                    if self.on_thinking:
+                        await self.on_thinking(
+                            "Streaming failed; retrying once with non-streaming completion..."
+                        )
+                    fallback = await self.gateway.chat_completion(
+                        messages=gateway_messages,
+                        model=self.config.model,
+                        provider=self.config.provider,
+                        tools=tools_to_send,
+                        temperature=self.config.temperature,
+                        max_tokens=self.config.max_tokens,
+                    )
+                    if fallback.tool_calls:
+                        tool_calls.extend(fallback.tool_calls)
+                    if fallback.content and fallback.content.strip():
+                        full_content = fallback.content
+                        yield fallback.content
+                        had_content = True
+                    elif not fallback.tool_calls:
+                        raise RuntimeError("Fallback completion returned no content")
+                except Exception:
+                    error_msg = str(e)
+                    error_type = type(e).__name__
+                    # Yield original streaming error for maximum transparency
+                    yield f"\n\n[Error: {error_type}] {error_msg}"
+                    full_content = f"[Error: {error_type}] {error_msg}"
+                    return
+
+            # Some providers may return an empty stream even when the request succeeded.
+            # Retry once with non-streaming completion so users still get a response.
+            if not full_content.strip() and not tool_calls:
+                if self.on_thinking:
+                    await self.on_thinking(
+                        "No streamed text received; retrying once with non-streaming completion..."
+                    )
+                try:
+                    fallback = await self.gateway.chat_completion(
+                        messages=gateway_messages,
+                        model=self.config.model,
+                        provider=self.config.provider,
+                        tools=tools_to_send,
+                        temperature=self.config.temperature,
+                        max_tokens=self.config.max_tokens,
+                    )
+                    if fallback.tool_calls:
+                        tool_calls.extend(fallback.tool_calls)
+                    if fallback.content and fallback.content.strip():
+                        full_content = fallback.content
+                        yield fallback.content
+                        had_content = True
+                except Exception as e:
+                    error_msg = str(e)
+                    error_type = type(e).__name__
+                    yield f"\n\n[Error: {error_type}] {error_msg}"
+                    return
 
             # Handle tool calls
             if tool_calls:

src/superqode/app_main.py

@@ -715,6 +715,13 @@ def claude_models(self) -> List[Dict]:
     def _get_claude_models(self) -> List[Dict]:
         """Get Claude models list - synced with providers/models.py."""
         return [
+            {
+                "id": "claude-opus-4-6",
+                "name": "Claude Opus 4.6 (Latest/New)",
+                "context": 1000000,
+                "desc": "Latest Claude Opus with 1M context",
+                "recommended": True,
+            },
             {
                 "id": "claude-opus-4-5-20251101",
                 "name": "Claude Opus 4.5",
@@ -753,6 +760,7 @@ def codex_models(self) -> List[Dict]:
     def _get_codex_models(self) -> List[Dict]:
         """Get Codex/OpenAI models list - updated from models.dev."""
         return [
+            {"id": "gpt-5.3-codex", "name": "GPT-5.3 Codex (Latest/New)", "context": 256000},
             {"id": "gpt-5.2", "name": "GPT-5.2 (Latest)", "context": 256000},
             {"id": "gpt-5.2-pro", "name": "GPT-5.2 Pro", "context": 256000},
             {"id": "gpt-5.2-chat-latest", "name": "GPT-5.2 Chat", "context": 256000},
@@ -777,8 +785,14 @@ def openhands_models(self) -> List[Dict]:
     def _get_openhands_models(self) -> List[Dict]:
         """Get OpenHands models list - updated from models.dev."""
         return [
+            {"id": "gpt-5.3-codex", "name": "GPT-5.3 Codex (Latest/New)", "context": 256000},
             {"id": "gpt-5.2", "name": "GPT-5.2 (Latest)", "context": 256000},
             {"id": "gpt-5.2-pro", "name": "GPT-5.2 Pro", "context": 256000},
+            {
+                "id": "claude-opus-4-6",
+                "name": "Claude Opus 4.6 (Latest/New)",
+                "context": 1000000,
+            },
             {
                 "id": "claude-opus-4-5-20251101",
                 "name": "Claude Opus 4.5 (Latest)",
@@ -904,6 +918,13 @@ def _get_openhands_models(self) -> List[Dict]:
         # Claude Code models - https://docs.anthropic.com/en/docs/about-claude/models (updated from models.dev)
         # Uses claude-code-acp adapter from Zed Industries
         self._claude_models = [
+            {
+                "id": "claude/claude-opus-4-6",
+                "name": "Claude Opus 4.6 (Latest/New)",
+                "free": False,
+                "recommended": True,
+                "desc": "Latest Claude Opus model - 1M context",
+            },
             {
                 "id": "claude/claude-opus-4-5-20251101",
                 "name": "Claude Opus 4.5",
@@ -941,6 +962,13 @@ def _get_openhands_models(self) -> List[Dict]:
         # Codex CLI / OpenAI models - https://platform.openai.com/docs/models (updated from models.dev)
         # Uses codex-acp adapter from Zed Industries
         self._codex_models = [
+            {
+                "id": "codex/gpt-5.3-codex",
+                "name": "GPT-5.3 Codex (Latest/New)",
+                "free": False,
+                "recommended": True,
+                "desc": "Latest GPT Codex model for coding workflows",
+            },
             {
                 "id": "codex/gpt-5.2",
                 "name": "GPT-5.2 (Latest)",
@@ -12490,23 +12518,28 @@ def is_latest_model(model_id: str, info) -> bool:
                 # Generic patterns that indicate latest models
                 latest_indicators = [
                     "latest",
+                    "new",
                     "preview",
                     "newest",
                     "current",
                     # Version patterns (highest versions)
+                    "5.3",
                     "5.2",
                     "5.1",
+                    "4.6",
                     "4.7",
                     "4.5",
                     "3.2",
                     "3.1",
                     "3.0",
                     # Specific latest model patterns by provider
+                    "gpt-5.3-codex",
                     "gpt-5.2",
                     "gpt-5.1",
                     "gemini-3",
                     "gemini 3",
                     "gemini3",
+                    "claude-opus-4-6",
                     "claude-opus-4-5",
                     "claude-sonnet-4-5",
                     "claude-haiku-4-5",
@@ -12537,12 +12570,10 @@ def is_latest_model(model_id: str, info) -> bool:
                 ):
                     return True
 
-                # Check release date - if released in 2025, likely latest
-                if info.released and info.released.startswith("2025"):
-                    # Prioritize models from late 2025 (newer)
-                    if "-12" in info.released or "-11" in info.released:
-                        return True
-                    # Also include other 2025 models
+                # Check release date - if released in 2025+ likely latest
+                if info.released and (
+                    info.released.startswith("2025") or info.released.startswith("2026")
+                ):
                     return True
 
                 return False
@@ -12572,8 +12603,10 @@ def get_latest_priority(model_id: str, info) -> int:
                 model_lower = model_id.lower()
                 name_lower = info.name.lower()
 
-                # Highest priority: Very latest models (2025-12, 2025-11 releases)
+                # Highest priority: Very latest models (2026+, then late 2025 releases)
                 if info.released:
+                    if info.released.startswith("2026"):
+                        return -11
                     if "-12" in info.released:
                         return -10  # Highest priority
                     elif "-11" in info.released:
@@ -12586,6 +12619,10 @@ def get_latest_priority(model_id: str, info) -> int:
                 # High priority: Latest version indicators
                 # Priority order: -10 (highest) to -6 (medium)
                 latest_patterns = [
+                    ("gpt-5.3-codex", -11),
+                    ("5.3", -11),
+                    ("claude-opus-4-6", -11),
+                    ("4.6", -11),
                     # Latest flagship models (2025-12 releases)
                     ("gpt-5.2", -10),
                     ("5.2", -10),
@@ -12963,13 +13000,15 @@ def is_latest_model(model_id: str, info) -> bool:
             name_lower = info.name.lower()
 
             # Check release date
-            if info.released and info.released.startswith("2025"):
-                if "-12" in info.released or "-11" in info.released:
-                    return True
+            if info.released and (
+                info.released.startswith("2025") or info.released.startswith("2026")
+            ):
                 return True
 
             # Check latest patterns
             latest_patterns = [
+                "gpt-5.3-codex",
+                "5.3",
                 "gpt-5.2",
                 "5.2",
                 "gemini-3",
@@ -12979,6 +13018,7 @@ def is_latest_model(model_id: str, info) -> bool:
                 "glm-4-plus",
                 "deepseek-v3.2",
                 "grok-3",
+                "claude-opus-4-6",
                 "claude-opus-4-5",
                 "claude-sonnet-4-5",
                 "claude-haiku-4-5",

src/superqode/config/loader.py

@@ -658,13 +658,17 @@ def create_default_config() -> Config:
         "anthropic": ProviderConfig(
             api_key_env="ANTHROPIC_API_KEY",
             description="Anthropic Claude models via API",
-            recommended_models=["claude-sonnet-4-5", "claude-opus-4-1", "claude-haiku-4-5"],
+            recommended_models=[
+                "claude-opus-4-6",
+                "claude-sonnet-4-5-20250929",
+                "claude-haiku-4-5-20251001",
+            ],
             custom_models_allowed=True,
         ),
         "openai": ProviderConfig(
             api_key_env="OPENAI_API_KEY",
             description="OpenAI GPT models via API",
-            recommended_models=["gpt-4o", "gpt-4.1", "gpt-4.1-mini", "gpt-4.1-nano"],
+            recommended_models=["gpt-5.3-codex", "gpt-5.2", "gpt-5.2-pro", "gpt-4o"],
             custom_models_allowed=True,
         ),
         "google": ProviderConfig(
@@ -797,13 +801,13 @@ def create_default_config() -> Config:
 
     # Model aliases
     config.model_aliases = {
-        "latest-sonnet": "claude-sonnet-4-5",
-        "latest-gpt": "gpt-4o",
+        "latest-sonnet": "claude-sonnet-4-5-20250929",
+        "latest-gpt": "gpt-5.3-codex",
         "latest-gemini": "gemini-3-pro-preview",
         "latest-glm": "glm-4.7",
-        "fast": "claude-haiku-4-5",
-        "balanced": "claude-sonnet-4-5",
-        "powerful": "claude-opus-4-1",
+        "fast": "claude-haiku-4-5-20251001",
+        "balanced": "claude-sonnet-4-5-20250929",
+        "powerful": "claude-opus-4-6",
         "thinking": "DeepSeek-V3.2-Exp-Think",
         "vision": "glm-4.6v",
         "coding": "codellama:34b",