
Twelve models went live today, and the OpenAI 5.6 family is most of it.
All six ChatGPT 5.6 variants are in: Luna and Luna Pro for fast, high-volume work, Terra and Terra Pro as the everyday middle, Sol and Sol Pro for hard coding and long agent runs. The six run on your free monthly credits.
Google sent two. Gemini 3.6 Flash is the interesting one, tuned to make small surgical edits instead of rewriting your entire file, which anyone who has watched a model helpfully reformat 400 lines will appreciate. Gemini 3.5 Flash Lite is free and uncapped.
Then three open-weight adds: Kimi K3 from Moonshot, Inkling from Thinking Machines, and Meta's Muse Spark 1.1, which accepts video and audio (in a future release) on top of text and images (now available). Inkling and Muse Spark are free and uncapped.
Last, Claude Opus 5. Anthropic's flagship, runs on credits.
It's been a busy stretch. If you missed our last round, that's when Claude Fable 5, Claude Sonnet 5, and Grok 4.5 showed up, alongside GLM 5.2, which is one of the rare flagship-class models here that's still free and unlimited.
Lineup is now 49 models. Brainiac will route for you if you would rather not think about it.
Whether you're the type to camp out for a new model on day one, or you just want your emails written and your invoices summarized without keeping a scorecard — you're in the right place. Nobody expects you to know what a Kimi or an Inkling is. That's the whole point of Brainiac: it knows the lineup so you don't have to.
Try the new stuff if you're curious. Ignore it if you're not. Either way, we've got you covered.
— Jeff
Model list last updated July 31, 2026. 12 new additions marked NEW. 49 models total.
Anthropic
Model | Access |
|---|---|
Claude Haiku 4.5 | Free Unlimited |
Claude Sonnet 4.6 | Uses Credits |
Claude Opus 4.8 NEW | Uses Credits |
Claude Fable 5 NEW | Uses Credits |
Claude Sonnet 5 NEW | Uses Credits |
Claude Opus 5 NEW | Uses Credits |
OpenAI
Model | Access |
|---|---|
GPT-4o mini | Free Unlimited |
GPT-5 Nano | Free Unlimited |
GPT-5.4 | Uses Credits |
GPT-5.4 Mini | Free Unlimited |
GPT-5.4 Nano | Free Unlimited |
GPT-5.5 | Uses Credits |
gpt-oss-120b | Free Unlimited |
gpt-oss-20b | Free Unlimited |
GPT-5.6 Luna NEW | Uses Credits |
GPT-5.6 Luna Pro NEW | Uses Credits |
GPT-5.6 Terra NEW | Uses Credits |
GPT-5.6 Terra Pro NEW | Uses Credits |
GPT-5.6 Sol NEW | Uses Credits |
GPT-5.6 Sol Pro NEW | Uses Credits |
Model | Access |
|---|---|
Gemini 3.1 Flash Lite | Free Unlimited |
Gemini 3.1 Pro Preview | Uses Credits |
Gemini 3.5 Flash | Uses Credits |
Gemini 3.6 Flash NEW | Uses Credits |
Gemini 3.5 Flash Lite NEW | Free Unlimited |
xAI
Model | Access |
|---|---|
Grok 4.3 | Free Unlimited |
Grok 4.5 NEW | Uses Credits |
Z.ai
Model | Access |
|---|---|
GLM 5.2 NEW | Free Unlimited |
MiniMax
Model | Access |
|---|---|
MiniMax M2 | Free Unlimited |
MiniMax M2.7 | Free Unlimited |
MiniMax M3 NEW | Free Unlimited |
NVIDIA
Model | Access |
|---|---|
Nemotron 3 Ultra NEW | Free Unlimited |
MoonshotAI
Model | Access |
|---|---|
Kimi K2 Thinking | Free Unlimited |
Kimi K2.5 | Free Unlimited |
Kimi K2.6 | Free Unlimited |
Kimi K3 NEW | Uses Credits |
Thinking Machines
Model | Access |
|---|---|
Inkling NEW | Free Unlimited |
Meta
Model | Access |
|---|---|
Llama 4 Maverick | Free Unlimited |
Llama 4 Scout | Free Unlimited |
Muse Spark 1.1 NEW | Uses Credits |
DeepSeek
Model | Access |
|---|---|
DeepSeek V3.2 | Free Unlimited |
DeepSeek V4 Pro | Free Unlimited |
Cohere
Model | Access |
|---|---|
Command R7B | Free Unlimited |
Mistral
Model | Access |
|---|---|
Mistral Small 3.2 24B | Free Unlimited |
Mistral Small 4 | Free Unlimited |
Perplexity
Model | Access |
|---|---|
Sonar | Free Unlimited |
Sonar Deep Research | Uses Credits |
Sonar Pro | Uses Credits |

