Available models

Request a model by name with the model field. Go includes 100 models, Starter and Pro 101, and Max and Scale 127; 16 more run only in PAYG mode, on purchased credit. Free has no models of its own for now. Lowest plan is the cheapest plan that includes the model; every plan above it includes it too. In PAYG mode every model is available, whatever your plan. Each plan’s page lists its models with cached-input prices too. Closed-weight models are called by their name (gpt-6.1-sol). Open-weight models are called @sdn/<name> (@sdn/glm-5.3). The older spellings (sdn-glm-5.3 and the bare glm-5.3) keep working. In YAML, quote an id that starts with @: model: "@sdn/glm-5.3". Prices are list prices in US dollars per 1M tokens. Each model’s page on sideren.io/models has its description and capabilities.

This page is a snapshot. GET /v1/models is the live catalog, with sideren.access saying whether your plan includes each model (Models endpoint).

Anthropic

Model	Lowest plan	Context	Input	Output
Claude Fable 5.1 `fable-5.1`	PAYG only	1M	$10	$50
Claude Opus 5.5 `opus-5.5`	Max	1M	$4	$20
Claude Opus 5 `opus-5`	PAYG only	1M	$5	$25
Claude Sonnet 5.5 `sonnet-5.5`	Starter	1M	$2	$10
Claude Sonnet 5 `sonnet-5`	PAYG only	1M	$3	$15
Claude Opus 4.8 `opus-4.8`	PAYG only	1M	$5	$25
Claude Opus 4.6 `opus-4.6`	PAYG only	1M	$5	$25
Sonnet 4.6 `sonnet-4.6`	PAYG only	200K	$3	$15
Claude Opus 4.5 `opus-4.5`	PAYG only	200K	$5	$25
Claude Haiku 5.5 `haiku-5.5`	Go	100K	$0.1	$0.5

opus-4.5 retires on Nov 24, 2026: move to opus-4.6.

Model	Lowest plan	Context	Input	Output
Muse Wonder 1.0 `muse-wonder-1.0`	PAYG only	1.05M	$4	$20
Muse Spark 1.3 `muse-spark-1.3`	Go	1.05M	$1.25	$4.25
Muse Spark 1.3 Contributor `muse-spark-1.3-contributor`	Go	1.05M	$0.1	$0.2
Llama 4 Maverick `@sdn/llama-4-maverick`	Go	1M	$0.24	$0.97
Llama 3.3 70B `@sdn/llama-3.3-70b`	Go	128K	$0.72	$0.72
Llama 3.1 70B `@sdn/llama-3.1-70b`	Go	128K	$0.72	$0.72
Llama 3.2 11B Vision `@sdn/llama-3.2-11b-vision`	Go	128K	$0.049	$0.676
Llama 4 Scout `@sdn/llama-4-scout`	Go	3.5M	$0.17	$0.66
Llama 3.2 3B `@sdn/llama-3.2-3b`	Go	80K	$0.051	$0.335
Llama 3 70B `@sdn/llama-3-70b`	Go	8K	$2.65	$3.5
Llama 3.1 8B `@sdn/llama-3.1-8b`	Go	128K	$0.22	$0.22
Llama 3.2 1B `@sdn/llama-3.2-1b`	Go	60K	$0.027	$0.201
Llama 3 8B `@sdn/llama-3-8b`	Go	8K	$0.3	$0.6

Google

Model	Lowest plan	Context	Input	Output
Gemini 4 Argon `gemini-4-argon`	PAYG only	1.05M	$2	$10
Gemini 3.1 Pro Preview `gemini-3.1-pro-preview`	PAYG only	200K	$2	$12
Gemini 3.8 Flash `gemini-3.8-flash`	PAYG only	1M	$0.75	$3.75
Gemini 3.7 Flash `gemini-3.7-flash`	PAYG only	1.05M	$0.75	$3.75
Gemini 3.6 Flash `gemini-3.6-flash`	PAYG only	1.05M	$0.75	$3.75
Gemini 3.5 Flash `gemini-3.5-flash`	PAYG only	1.05M	$1.5	$9
Gemini 3.5 Flash Lite `gemini-3.5-flash-lite`	PAYG only	1.05M	$0.3	$2.5
Gemini 3.1 Flash Lite `gemini-3.1-flash-lite`	PAYG only	1.05M	$0.25	$1.5
Gemma 4 26B `@sdn/gemma-4-26b`	Go	256K	$0.1	$0.3
Gemma 3 27B `@sdn/gemma-3-27b`	Go	203K	$0.12	$0.2
Gemma 3 12B `@sdn/gemma-3-12b`	Go	131K	$0.05	$0.1
Gemma 3 4B `@sdn/gemma-3-4b`	Go	128K	$0.04	$0.08

OpenAI

Model	Lowest plan	Context	Input	Output
GPT-6 Astra `gpt-6-astra`	Max	272K	$10	$50
GPT-6.1 Sol `gpt-6.1-sol`	Max	272K	$2	$10
GPT-6 Sol `gpt-6-sol`	Max	272K	$2	$10
GPT-5.6 Sol `gpt-5.6-sol`	Max	272K	$5	$30
GPT-5.5 `gpt-5.5`	Max	272K	$5	$30
GPT-6.1 Terra `gpt-6.1-terra`	Max	272K	$1	$5
GPT-5 Codex `gpt-5-codex`	Max	400K	$1.25	$10
GPT-5.6 Terra `gpt-5.6-terra`	Max	272K	$2	$12
GPT-5.4 `gpt-5.4`	Max	272K	$2.5	$15
GPT-5.3 Codex `gpt-5.3-codex`	Max	400K	$1.75	$14
GPT-5.2 `gpt-5.2`	Max	400K	$1.75	$14
GPT-5.2 Codex `gpt-5.2-codex`	Max	400K	$1.75	$14
GPT-5.1 `gpt-5.1`	Max	400K	$1.25	$10
GPT-5.1 Codex Max `gpt-5.1-codex-max`	Max	400K	$1.25	$10
GPT-5.1 Codex `gpt-5.1-codex`	Max	400K	$1.25	$10
GPT-5 `gpt-5`	Max	400K	$1.25	$10
GPT-5.4 mini `gpt-5.4-mini`	Max	400K	$0.75	$4.5
GPT-6 Luna `gpt-6-luna`	Go	272K	$0.1	$0.5
GPT-5.6 Luna `gpt-5.6-luna`	Go	272K	$0.2	$1.2
GPT-5.1 Codex mini `gpt-5.1-codex-mini`	Max	400K	$0.25	$2
GPT Chat (latest) `gpt-chat-latest`	Max	200K	$5	$30
GPT-5 mini `gpt-5-mini`	Max	400K	$0.25	$2
GPT-5.4 nano `gpt-5.4-nano`	Max	400K	$0.2	$1.25
GPT-4.1 `gpt-4.1`	Max	1.05M	$2	$8
GPT-5 nano `gpt-5-nano`	Max	400K	$0.05	$0.4
GPT-OSS 120B `@sdn/gpt-oss-120b`	Go	128K	$0.35	$0.75
GPT-4.1 mini `gpt-4.1-mini`	Max	1.05M	$0.4	$1.6
GPT-OSS Safeguard 120B `@sdn/gpt-oss-safeguard-120b`	Go	128K	$0.15	$0.6
GPT-4.1 nano `gpt-4.1-nano`	Max	1.05M	$0.1	$0.4
GPT-OSS Safeguard 20B `@sdn/gpt-oss-safeguard-20b`	Go	128K	$0.07	$0.2
GPT-OSS 20B `@sdn/gpt-oss-20b`	Go	128K	$0.2	$0.3

gpt-chat-latest retires on Dec 2, 2026.

Moonshot AI

Model	Lowest plan	Context	Input	Output
Kimi K3.1 Pro `@sdn/kimi-k3.1-pro`	Go	1.05M	$2	$10
Kimi K3 `@sdn/kimi-k3`	Go	1M	$3	$15
Kimi K2.7 Code `@sdn/kimi-k2.7-code`	Go	131K	$0.95	$4
Kimi K2.6 `@sdn/kimi-k2.6`	Go	262K	$0.95	$4
Kimi K2.5 `@sdn/kimi-k2.5`	Go	262K	$0.6	$3
Kimi K2 Thinking `@sdn/kimi-k2-thinking`	Go	262K	$0.6	$2.5

Z.ai

Model	Lowest plan	Context	Input	Output
GLM 5.3 `@sdn/glm-5.3`	Go	1M	$1.4	$4.4
GLM 5.2 `@sdn/glm-5.2`	Go	131K	$1.4	$4.4
GLM 5.3 Flash `@sdn/glm-5.3-flash`	Go	1M	$0.15	$0.5
GLM 5.3 Flash Ultra Fast `@sdn/glm-5.3-flash-ultra-fast`	Go	1M	$0.3	$1
GLM 5 `@sdn/glm-5`	Go	200K	$1	$3.2
GLM 4.7 `@sdn/glm-4.7`	Go	200K	$0.6	$2.2
GLM 4.6 `@sdn/glm-4.6`	Go	200K	$0.6	$2.2
GLM 4.7 Flash `@sdn/glm-4.7-flash`	Go	131K	$0.0605	$0.4

@sdn/glm-5.3-flash-ultra-fast is 50% off at launch, from Nov 8, 2026, 17:00 UTC until Nov 15, 2026, 17:00 UTC. The table shows its list price, which applies after.

DeepSeek

Model	Lowest plan	Context	Input	Output
DeepSeek V4 Pro `@sdn/deepseek-v4-pro`	Go	1M	$1.32	$3.96
DeepSeek V4 Flash `@sdn/deepseek-v4-flash`	Go	1M	$0.44	$1.32
DeepSeek V4.1 Flash 1017 `@sdn/deepseek-v4.1-flash-1017`	Go	1M	$0.3	$1.2
DeepSeek V4.1 Flash Ultra Fast `@sdn/deepseek-v4.1-flash-ultra-fast`	Go	1M	$0.6	$2.4
DeepSeek V3.2 `@sdn/deepseek-v3.2`	Go	131K	$0.57	$1.71
DeepSeek V3.1 `@sdn/deepseek-v3.1`	Go	164K	$0.58	$1.68
DeepSeek R1 `@sdn/deepseek-r1`	Go	128K	$1.35	$5.4

@sdn/deepseek-v4.1-flash-ultra-fast is 50% off at launch, from Nov 8, 2026, 17:00 UTC until Nov 15, 2026, 17:00 UTC. The table shows its list price, which applies after.

xAI

Model	Lowest plan	Context	Input	Output
Grok 4.7 `grok-4.7`	Go	200K	$2	$6
Grok 4.6 `grok-4.6`	Go	500K	$2	$6
Grok 4.3 `grok-4.3`	Go	1M	$1.25	$2.5
Grok 4 `grok-4`	Go	256K	$3	$15
Grok 4.20 `grok-4.20`	Go	2M	$1.25	$2.5
Grok 4.20 (non-reasoning) `grok-4.20-non-reasoning`	Go	2M	$1.25	$2.5
Grok 4.1 Fast `grok-4.1-fast`	Go	2M	$0.2	$0.5

Alibaba Qwen

Model	Lowest plan	Context	Input	Output
Qwen3 Coder 480B `@sdn/qwen3-coder-480b`	Go	131K	$0.45	$1.8
Qwen3 235B `@sdn/qwen3-235b`	Go	262K	$0.22	$0.88
Qwen 3.8 27B `@sdn/qwen3.8-27b`	Go	262K	$0.45	$3.2
Qwen3 Coder Next `@sdn/qwen3-coder-next`	Go	262K	$0.5	$1.2
Qwen3 VL 235B `@sdn/qwen3-vl-235b`	Go	262K	$0.3	$1.5
Qwen3 Next 80B `@sdn/qwen3-next-80b`	Go	262K	$0.14	$1.2
Qwen3 Coder 30B `@sdn/qwen3-coder-30b`	Go	262K	$0.15	$0.6
Qwen3 30B A3B `@sdn/qwen3-30b-a3b`	Go	33K	$0.051	$0.335
Qwen3 32B `@sdn/qwen3-32b`	Go	16K	$0.15	$0.6
Qwen2.5 Coder 32B `@sdn/qwen2.5-coder-32b`	Go	33K	$0.66	$1

Cohere

Model	Lowest plan	Context	Input	Output
Command A `@sdn/command-a`	Go	256K	$2.5	$10

MiniMax

Model	Lowest plan	Context	Input	Output
MiniMax M3.1 Flash `@sdn/minimax-m3.1-flash`	Go	300K	$0.15	$0.6
MiniMax M2.5 `@sdn/minimax-m2.5`	Go	197K	$0.3	$1.2
MiniMax M2.1 `@sdn/minimax-m2.1`	Go	205K	$0.3	$1.2
MiniMax M2 `@sdn/minimax-m2`	Go	205K	$0.3	$1.2

Sarvam

Model	Lowest plan	Context	Input	Output
Sarvam 105B `@sdn/sarvam-105b`	Go	128K	$0.18	$0.7
Sarvam 105B Conversations `sarvam-105b-conversations`	Go	32K	$0.18	$0.7

Mistral AI

Model	Lowest plan	Context	Input	Output
Mistral Medium 3.5 `mistral-medium-3.5`	Go	256K	$1.5	$7.5
Devstral 2 123B `@sdn/devstral-2-123b`	Go	262K	$0.4	$2
Mistral Large 3 675B `@sdn/mistral-large-3-675b`	Go	262K	$0.5	$1.5
Magistral Small `@sdn/magistral-small`	Go	128K	$0.5	$1.5
Mistral Small 3.1 `@sdn/mistral-small-3.1`	Go	131K	$0.351	$0.555
Pixtral Large `@sdn/pixtral-large`	Go	128K	$2	$6
Mistral Large 24.02 `@sdn/mistral-large-2402`	Go	33K	$4	$12
Ministral 14B `@sdn/ministral-14b`	Go	128K	$0.2	$0.2
Mistral Small `@sdn/mistral-small`	Go	33K	$1	$3
Ministral 8B `@sdn/ministral-8b`	Go	128K	$0.15	$0.15
Ministral 3B `@sdn/ministral-3b`	Go	256K	$0.1	$0.1

NVIDIA

Model	Lowest plan	Context	Input	Output
Nemotron 3 120B `@sdn/nemotron-3-120b`	Go	256K	$0.5	$1.5
Nemotron Super 3 120B `@sdn/nemotron-super-3-120b`	Go	262K	$0.15	$0.65
Nemotron Nano 3 30B `@sdn/nemotron-nano-3-30b`	Go	262K	$0.06	$0.24
Nemotron Nano 12B `@sdn/nemotron-nano-12b`	Go	128K	$0.2	$0.6

Microsoft

Model	Lowest plan	Context	Input	Output
Phi-4 `@sdn/phi-4`	Go	16K	$0.125	$0.5
Phi-4 mini `@sdn/phi-4-mini`	Go	131K	$0.075	$0.3

Amazon

Model	Lowest plan	Context	Input	Output
Nova Pro `nova-pro`	Go	300K	$0.8	$3.2
Nova 2 Lite `nova-2-lite`	Go	128K	$0.33	$2.75
Nova Lite `nova-lite`	Go	300K	$0.06	$0.24
Nova Micro `nova-micro`	Go	128K	$0.035	$0.14

Writer

Model	Lowest plan	Context	Input	Output
Palmyra X5 `palmyra-x5`	Go	1M	$0.6	$6
Palmyra X4 `palmyra-x4`	Go	123K	$2.5	$10

AI Singapore

Model	Lowest plan	Context	Input	Output
Gemma Sea Lion v4 27B `@sdn/gemma-sea-lion-v4-27b`	Go	128K	$0.351	$0.555

IBM

Model	Lowest plan	Context	Input	Output
Granite 4.0 H Micro `@sdn/granite-4.0-h-micro`	Go	131K	$0.017	$0.112

Embedding models

Text in, vectors out (Embeddings). They have no output price.

Model	Lowest plan	Max input	Input
Qwen3 Embedding 0.6B `@sdn/qwen3-embed-0.6b`	Go	8K	$0.02
BGE-M3 `@sdn/bge-m3`	Go	8K	$0.02
BGE Large EN v1.5 `@sdn/bge-large-en`	Go	1K	$0.21
EmbeddingGemma 300M `@sdn/embed-gemma-300m`	Go	2K	$0.02
BGE Base EN v1.5 `@sdn/bge-base-en`	Go	1K	$0.07
PLaMo Embedding 1B `@sdn/plamo-embed-1b`	Go	4K	$0.02
BGE Small EN v1.5 `@sdn/bge-small-en`	Go	1K	$0.03

Longer prompts

These models accept prompts beyond the context window agents plan compaction around. The context window is context_window in GET /v1/models; the longest prompt is sideren.max_context_window.

Model	Context window	Longest prompt
GPT-6 Astra `gpt-6-astra`	272K	1.05M
GPT-6.1 Sol `gpt-6.1-sol`	272K	1.05M
GPT-6 Sol `gpt-6-sol`	272K	1.05M
GPT-5.6 Sol `gpt-5.6-sol`	272K	1.05M
GPT-5.5 `gpt-5.5`	272K	1.05M
GPT-6.1 Terra `gpt-6.1-terra`	272K	1.05M
GPT-5.6 Terra `gpt-5.6-terra`	272K	1.05M
Gemini 3.1 Pro Preview `gemini-3.1-pro-preview`	200K	1.05M
GPT-5.4 `gpt-5.4`	272K	1.05M
Grok 4.7 `grok-4.7`	200K	500K
GPT-6 Luna `gpt-6-luna`	272K	1.05M
GPT-5.6 Luna `gpt-5.6-luna`	272K	1.05M

Which model answers

The response’s model field and the sideren-model header echo the id you sent. If the model you name is unavailable, the API may serve the request with a comparable model and keep your conversation moving; catalog rows marked delivery: "optimized" are compatibility ids whose physical model is chosen for you. Pin a delivery: "exact" id for anything whose exact behavior you depend on (Model routing).

A model on a higher plan returns 400 plan_upgrade_required, and the message names the cheapest plan that includes it.
A PAYG-only model requested without PAYG mode returns 400 payg_required.

Get started

Plans & pricing

Agents

API reference

Guides

Reference

Available models

Anthropic

Meta

Google

OpenAI

Moonshot AI

Z.ai

DeepSeek

xAI

Alibaba Qwen

Cohere

MiniMax

Sarvam

Mistral AI

NVIDIA

Microsoft

Amazon

Writer

AI Singapore

IBM

Embedding models

Longer prompts

Which model answers