Model reference

Model specifications, availability, and pricing reviewed October 3, 2026, with Haiku 5.5 and Sonnet 5.5 cache pricing updated October 7, 2026. Price means USD per 1M text tokens (input / output) at the provider’s Standard short-context tier, preferring published post-promotion rates. Where only promotional rates are published, those rates are retained and explicitly labeled. Long-context thresholds vary by model: Anthropic Haiku 5.5 >100K, OpenAI >272K, Google Pro >200K, xAI ≥200K, and selected BytePlus models >128K input tokens. These models reprice the whole request; Timbal reports distinct <unit>_long_context usage keys — see the OpenAI page. Dedicated deployments, restricted access, unknown prices, conflicting sources, and future retirement dates are noted on each provider page. Unknown prices are not free. Audio, image generation, tool calls, cache storage, regional premiums, and time-dependent pricing need separate billing. Model capabilities do not imply every provider-native endpoint is available through Agent.

Anthropic

Claude Fable 5.1, Opus 5.5, Sonnet 5.5, and Haiku 5.5

BytePlus

Dola Seed 2.1, Seed 2.0, DeepSeek, and GLM

Cerebras

Wafer-scale inference at world-record token speeds

Fireworks

Open-source models via Fireworks

Google

Gemini 3.8, 3.7, earlier Gemini models, and Gemini 4 availability

Groq

Ultra-low latency via Groq LPU

Moonshot (Kimi)

Kimi K3 / K2.x via Moonshot’s OpenAI-compatible API

OpenAI

GPT-6.1 Sol, GPT-6 Astra/Luna, and earlier GPT and o-series models

SambaNova

High-throughput inference on custom RDU hardware

Timbal Auto

Platform model routing per turn: timbal/auto, timbal/auto-cost, timbal/auto-intelligence

TogetherAI

Open-source models via TogetherAI

xAI

Grok 4.7, Grok Build 0.1, and earlier Grok models

Xiaomi MiMo

MiMo V2.5 and V2.5 Pro

Automatic routing: `timbal/auto`

Set model="timbal/auto" (or timbal/auto-cost, timbal/auto-intelligence) and the Timbal platform picks the model and reasoning effort for each turn, with cross-vendor fallbacks. See Timbal Auto.

Scoring

Each model is rated on two axes using a 1-5 scale:

Reasoning — depth of analytical and chain-of-thought capability
Speed — relative latency and throughput for its class

Scores are relative within the full set of models on this page, not within a single provider. A reasoning score of 5 means frontier-class reasoning (e.g. GPT-6 Astra, Claude Fable 5.1, o3-pro, GPT-5.5, Gemini 2.5 Pro). A speed score of 5 means the fastest tier (nano/mini/flash-lite models, or Groq-hosted inference).