Precision matters.

This release is about getting models right: accurate parameter ranges for reasoning effort, verbosity, and temperature across providers and through 3rd parties such as OpenRouter and AWS. Plus the latest frontier models, a new cloud platform, and Anthropic going deeper.

A huge shout-out goes to @Slava-256, for making Big-AGI's model support the best-in-class with this release. From filing detailed issues for accurate reasoning effort ranges (#940, #944), verbosity accuracy (#947, #948), temperature support (#953), to pushing for Opus 4.6 support (#962), and many more (31 closed tickets!). Slava's thorough testing, precise reports, findings, and reference code are the reason why 2.0.4 was focused on precise parameters support.

Models & Parameters

Anthropic Opus 4.6 with adaptive thinking and 1M tokens, Sonnet 4.6 and new features
Google Gemini 3.1 Pro, Nano Banana 2
OpenAI GPT-5.4 family with 1M context and reasoning controls
xAI Grok 4.20
New Z.ai GLM models support, with configurable thinking
API-validated parameters: reasoning effort, budget, verbosity, temperature, tools, are tested on live APIs
Model-specific controls: each model exposes only the parameter values it actually supports
Automated sweep testing across native APIs keeps parameter definitions current

Anthropic API mastery

Configurable web search and web fetch depth, and dynamic search
API controls such as US-based inference and Fast mode for Opus (2.5x speed, at 6x cost)
Continuation for long outputs (pause_turn support)

AWS Bedrock support (New)

Authentication via both IAM credentials, or using a single AWS Bedrock token
Native support for 3 native AWS Bedrock protocols: Anthropic models via Invoke, Amazon Nova models via Converse, and other models via OpenAI-compatible ChatCompletions

Also New

Attachments on any message, lossless images option (warning: can be very large on Gemini models)
Rich text copy, reasoning trace controls
System theme mode follow
Mobile focus mode

New Contributors

@Blacksuan19 made their first contribution (SSR guard, system theme mode) in https://github.com/enricoros/big-AGI/pull/1011
@dLo999 made their first contribution (local time for backup exports) in https://github.com/enricoros/big-AGI/pull/1041
Full Changelog: https://github.com/enricoros/big-AGI/compare/v2.0.3...v2.0.4

Get Started

Available now at big-agi.com, via Docker, or self-host from source.

2.0.4 · Hyper Params