2026 AI Model Guide
Text • Image • Voice • Video
Compare leading AI models as of September 2026. Check model IDs, pricing boundaries, and best-fit workloads for Claude Fable 5.1, GPT-6 Astra, Gemini 3.8 Flash, and more.
- 12AI Models
- 4Categories
- Sep 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.
Claude Fable 5.1
Demanding reasoning, long-running agents and multistep research when a general-purpose model falls short.
Key Features
Updated
2026-09
GPT-6 Astra
Complex coding, research and document work, with image input, tool use and structured outputs.
Key Features
Updated
2026-09
Gemini 3.8 Flash
Cost-conscious coding and multimodal analysis. Accepts text, images, video, audio and PDFs; returns text.
Key Features
Image Generation AI
Current image generation and editing models for complex instructions, typography, multi-reference work, and production asset workflows.
GPT Image 2
Image generation and editing for detailed instructions and faithful reference-based assets.
Key Features
Pricing
Updated
2026-09
FLUX.2 Pro
Multi-reference generation and editing for repeatable production of visual assets.
Key Features
Pricing
Updated
2026-09
Nano Banana Pro
Complex visual instructions, brand consistency and precise design; also called Nano Banana Pro.
Key Features
Pricing
Updated
2026-09
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
2026-09
Gemini 3.1 Flash Live
Low-latency audio conversations and multimodal interaction through the Live API.
Key Features
Pricing
Updated
2026-09
Eleven v3
Expressive voiceovers, character dialogue and narration with audio tags to guide delivery.
Key Features
Pricing
Updated
2026-09
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
Iterate on short videos with natural-language instructions and conversational editing.
Key Features
Pricing
Updated
2026-09
Veo 3.1
Short videos with synchronized audio and creative control; choose Standard, Fast or Lite for the production task.
Key Features
Pricing
Updated
2026-09
Seedance 2.5
Joint audio-video generation up to 30 seconds, with reference control, extension and targeted editing.
Key Features
Pricing
Updated
2026-09
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Gemini 4 Argon vs Claude Opus 5.5 vs Sonnet 5.5: Which to Use
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Try GPT-6.1 Sol first for high-volume work under 272K input tokens. Keep Opus 5.5 where a failed attempt costs more review time than the tokens you save.
- Claude AI
Fable 5.1 Not Available in Claude Code? Diagnose It by Symptom
Update to 2.1.257 or later, restart, then type /model claude-fable-5-1. If that works, only the picker is wrong. If it fails, the error names the cause.
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
claude-fable-5-1gpt-6-astragemini-3.8-flashPricing 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