2026 AI Model Guide
Text • Image • Voice • Video
Compare leading AI models as of October 2026. Check model IDs, pricing boundaries, and best-fit workloads for Claude Opus 5.5, GPT-6.1 Sol, Gemini 3.8 Flash, and more.
- 15AI Models
- 4Categories
- Oct 2026Last checked
AI Model Categories 2026
Text Generation AI
Current LLMs for demanding reasoning, coding, and agentic work, compared by official model ID, context, tools, API stage, and pricing.
GPT-6 Astra
OpenAI's most capable model for complex coding, research, computer use and documents, with image input and tool use.
Key Features
Updated
2026-10
GPT-6.1 Sol
Near-Astra performance at a lower price for complex coding, computer use and professional work.
Key Features
Updated
2026-10
Claude Fable 5.1
Anthropic's model for demanding reasoning and long-horizon agentic work, or when Opus 5.5 at higher effort still falls short.
Key Features
Updated
2026-10
Claude Opus 5.5
Released Sep 22, 2026. Anthropic's recommended starting point for most workloads, built for long-running agentic coding and knowledge work.
Key Features
Updated
2026-10
Claude Sonnet 5.5
Anthropic's best combination of speed and intelligence, for production coding and everyday agent tasks.
Key Features
Updated
2026-10
Gemini 3.8 Flash
Google's most intelligent Flash model, built for long-horizon software engineering; accepts text, images, video, audio and PDFs.
Key Features
Updated
2026-10
Image Generation AI
Current image generation and editing models for complex instructions, typography, multi-reference work, and production asset workflows.
GPT Image 2.5 Sunburst
OpenAI's most capable image model (Sep 8, 2026) for generation and editing where edit precision matters; Flare is the faster everyday variant.
Key Features
Updated
2026-10
FLUX 3 Image
BFL's newest image model (GA Oct 1, 2026): generate, edit specific regions and combine up to 10 references through one endpoint.
Key Features
Updated
2026-10
Nano Banana Pro
Studio-quality 4K visuals and text rendering for complex visual instructions and brand-consistent design.
Key Features
Updated
2026-10
Voice Synthesis AI
Current models for realtime voice agents and TTS, spanning reasoning, tool use, multimodal context, interruption handling, and expressive speech.
GPT-Realtime-2.1
Interruptible speech-to-speech with reasoning and tool use for support and voice agents.
Key Features
Updated
2026-10
Gemini 3.8 Live
Google's default Live API model (Sep 2026) for low-latency voice agents; recommended replacement for Gemini 3.1 Flash Live.
Key Features
Updated
2026-10
Eleven v4
ElevenLabs' flagship speech model: expressive multi-speaker dialogue and high-fidelity voice cloning in 90+ languages.
Key Features
Pricing
Updated
2026-10
Video Generation AI
Current video generation and editing models for short clips with audio, conversational revisions, multimodal references, and API workflows.
Gemini Omni 1.1 Flash
Google's default video model and the official replacement for Veo 3.1 previews, which shut down on Oct 22, 2026; refine clips in conversation.
Key Features
Pricing
Updated
2026-10
FLUX 3 Video
Text-to-video, image-to-video and continuation with synchronized audio in one request: 5–20 seconds, up to 4K.
Key Features
Updated
2026-10
Seedance 2.5
Joint audio-video generation up to 30 seconds, with reference control, extension and targeted editing.
Key Features
Pricing
Updated
2026-10
Latest articles
New and recently updated guides, comparisons and fixes, newest first.
- Pricing & Plans
Does Claude Pro Have a Free Trial? How to Check Your Account in 2026
A claude.ai/referral link is a guest pass: 7 days of Pro for accounts new to paid Claude, first come, first served. Otherwise, Free is a $0 plan with no trial.
- OpenAI Codex
Codex Cannot Serialize Value: Worktree Chats Fail, Local Works
Restarts won't clear it: build 26.1016.51333 breaks only Worktree chat starts. Local sends fine, and Hand off or your own git worktree restores isolation.
- OpenAI Codex
OpenAI Developers "OAuth state not found": Connect From the Web
The desktop app's plugin callback fails on OpenAI's side, so retrying won't help. Pick a route by what you were connecting, with the evidence behind each one.
- OpenAI Codex
Codex “Responses WebSocket messages must have type”: Router Fix
Older codex-router builds reject the response.interrupt Codex sends mid-turn. Update the checkout to main; as of October 22, 2026, Homebrew still ships v0.6.0.
- OpenAI Codex
Codex Update Check Failed (HTTP 520): Fixed Server-Side on Oct 21
Not your Mac: OpenAI's update feed returned HTTP 520 from October 13 to 21, 2026. Quit and retry; if it still fails, reinstall or look for a Managed policy.
- OpenAI Codex
Codex Windows Sandbox Setup Fails with os error 32: Fixed Builds
Windows won't let the sandbox helper open a file Codex itself is running. Put the app and every CLI on a fixed build, clear leftovers, then check for errors=[].
- Troubleshooting
GLM Coding Plan 429: Fix It by the Inner Error Code
Z.ai returns nearly every Coding Plan refusal as HTTP 429. The code inside (1308, 1302, 1305, 1113 and others) says whether to wait, slow down, or fix your setup.
- Troubleshooting
ChatGPT Payment Was Not Approved: Find the Billing Owner Before You Retry
The message does not say who declined. Free offer or free trial: see where the claim stopped. Paid plan or renewal: check the charge and billing platform first.
What This Guide Helps You Verify
Shortlist by workload, then confirm the current API contract and price before integrating
Current Model IDs
Separates product names from callable API IDs
gpt-6-astragpt-6.1-solclaude-fable-5-1Pricing Boundaries
Shows public API rates or the official pricing route
Availability Stage
Distinguishes GA, preview, and limited access
Workload Fit
Compares text, image, voice, and video jobs