rhachet-brains-togetherai

rhachet brain.atom adapter for together ai open-source models

install

npm install rhachet-brains-togetherai

usage

import { genBrainAtom } from 'rhachet-brains-togetherai';
import { z } from 'zod';

// create a brain atom for direct model inference
const brainAtom = genBrainAtom({ slug: 'together/qwen3/coder-next' });

// simple string output
const { output: explanation } = await brainAtom.ask({
  role: { briefs: [] },
  prompt: 'explain this code',
  schema: { output: z.string() },
});

// structured object output
const { output: { summary, issues } } = await brainAtom.ask({
  role: { briefs: [] },
  prompt: 'analyze this code',
  schema: { output: z.object({ summary: z.string(), issues: z.array(z.string()) }) },
});

available brains

atoms (via genBrainAtom)

stateless inference without tool use.

| slug | model id | context | swe-bench | input | output | | --- | --- | --- | --- | --- | --- | | together/qwen3/coder-next | Qwen/Qwen3-Coder-Next-FP8 | 262K | 74.2% | $0.50/1M | $1.20/1M | | together/qwen3/coder-480b | Qwen/Qwen3-Coder-480B-A35B-Instruct-FP8 | 262K | 69.6% | $2.00/1M | $2.00/1M | | together/qwen3/235b | Qwen/Qwen3-235B-A22B-Instruct-2507-tput | 131K | — | $0.20/1M | $0.60/1M | | together/deepseek/v3.1 | deepseek-ai/DeepSeek-V3.1 | 128K | — | $1.25/1M | $1.25/1M | | together/deepseek/r1 | deepseek-ai/DeepSeek-R1 | 128K | — | $3.00/1M | $7.00/1M | | together/kimi/k2 | moonshotai/Kimi-K2-Instruct | 128K | — | $1.00/1M | $3.00/1M | | together/kimi/k2.5 | moonshotai/Kimi-K2.5 | 128K | 76.8% | $0.50/1M | $2.80/1M | | together/llama4/maverick | meta-llama/Llama-4-Maverick-17B-128E-Instruct-FP8 | 1M | — | $0.27/1M | $0.85/1M | | together/llama3.3/70b | meta-llama/Llama-3.3-70B-Instruct-Turbo | 128K | — | $0.88/1M | $0.88/1M | | together/glm/4.7 | zai-org/GLM-4.7 | 128K | 73.8% | $0.45/1M | $2.00/1M |

why together ai

together ai rates include managed fine-tune access ($6-10/1M tokens) and high-throughput serverless infrastructure. some model authors offer cheaper direct apis for inference-only:

| model | together ai (in/out) | author direct (in/out) | author api | | --- | --- | --- | --- | | deepseek v3 | $1.25/$1.25 | $0.28/$0.42 (3-4x cheaper) | api.deepseek.com | | deepseek r1 | $3.00/$7.00 | $0.28/$0.42 (10-17x cheaper) | api.deepseek.com | | kimi k2 | $1.00/$3.00 | $0.60/$2.50 (~35% cheaper) | platform.moonshot.ai | | kimi k2.5 | $0.50/$2.80 | $0.60/$3.00 (at parity) | platform.moonshot.ai | | qwen3 coder-next | $0.50/$1.20 | $1.00/$5.00 (together ai cheaper) | alibabacloud.com | | glm-4.7 | $0.45/$2.00 | $0.60/$2.20 (together ai cheaper) | z.ai | | llama 4 maverick | $0.27/$0.85 | ~$0.27/$0.85 (at parity) | llama.com |

tldr: deepseek's direct api is dramatically cheaper. kimi k2 is modestly cheaper via moonshot. the rest are at parity or more expensive than together ai. together ai's premium buys fine-tune access and unified multi-model infrastructure.

environment

requires TOGETHER_API_KEY environment variable.

get your api key at https://api.together.xyz/settings/api-keys

sources

• together ai api docs
• together ai models
• together ai rates
• deepseek rates
• moonshot rates
• alibaba model studio rates
• zhipu z.ai rates
• meta llama api