OpenRouter

OpenRouter aggregates models from multiple providers with enhanced features like rate limiting and failover. Access 110 models through Mastra’s model router.

Learn more in the OpenRouter documentation .

Usage


import { Agent } from "@mastra/core";
 
const agent = new Agent({
  name: "my-agent",
  instructions: "You are a helpful assistant",
  model: "openrouter/anthropic/claude-3.5-haiku"
});

Mastra uses the OpenAI-compatible /chat/completions endpoint. Some provider-specific features may not be available. Check the OpenRouter documentation for details.

Configuration


# Use gateway API key
OPENROUTER_API_KEY=your-gateway-key
 
# Or use provider API keys directly  
OPENAI_API_KEY=sk-...
ANTHROPIC_API_KEY=ant-...

Available Models

Model
`anthropic/claude-3.5-haiku`
`anthropic/claude-3.7-sonnet`
`anthropic/claude-haiku-4.5`
`anthropic/claude-opus-4`
`anthropic/claude-opus-4.1`
`anthropic/claude-sonnet-4`
`anthropic/claude-sonnet-4.5`
`cognitivecomputations/dolphin3.0-mistral-24b`
`cognitivecomputations/dolphin3.0-r1-mistral-24b`
`deepseek/deepseek-chat-v3-0324`
`deepseek/deepseek-chat-v3.1`
`deepseek/deepseek-r1-0528-qwen3-8b:free`
`deepseek/deepseek-r1-0528:free`
`deepseek/deepseek-r1-distill-llama-70b`
`deepseek/deepseek-r1-distill-qwen-14b`
`deepseek/deepseek-r1:free`
`deepseek/deepseek-v3-base:free`
`deepseek/deepseek-v3.1-terminus`
`featherless/qwerky-72b`
`google/gemini-2.0-flash-001`
`google/gemini-2.0-flash-exp:free`
`google/gemini-2.5-flash`
`google/gemini-2.5-flash-lite`
`google/gemini-2.5-flash-lite-preview-09-2025`
`google/gemini-2.5-flash-preview-09-2025`
`google/gemini-2.5-pro`
`google/gemini-2.5-pro-preview-05-06`
`google/gemini-2.5-pro-preview-06-05`
`google/gemma-2-9b-it:free`
`google/gemma-3-12b-it`
`google/gemma-3-27b-it`
`google/gemma-3n-e4b-it`
`google/gemma-3n-e4b-it:free`
`meta-llama/llama-3.2-11b-vision-instruct`
`meta-llama/llama-3.3-70b-instruct:free`
`meta-llama/llama-4-scout:free`
`microsoft/mai-ds-r1:free`
`mistralai/codestral-2508`
`mistralai/devstral-medium-2507`
`mistralai/devstral-small-2505`
`mistralai/devstral-small-2505:free`
`mistralai/devstral-small-2507`
`mistralai/mistral-7b-instruct:free`
`mistralai/mistral-medium-3`
`mistralai/mistral-medium-3.1`
`mistralai/mistral-nemo:free`
`mistralai/mistral-small-3.1-24b-instruct`
`mistralai/mistral-small-3.2-24b-instruct`
`mistralai/mistral-small-3.2-24b-instruct:free`
`moonshotai/kimi-dev-72b:free`
`moonshotai/kimi-k2`
`moonshotai/kimi-k2-0905`
`moonshotai/kimi-k2:free`
`nousresearch/deephermes-3-llama-3-8b-preview`
`nousresearch/hermes-4-405b`
`nousresearch/hermes-4-70b`
`openai/gpt-4.1`
`openai/gpt-4.1-mini`
`openai/gpt-4o-mini`
`openai/gpt-5`
`openai/gpt-5-chat`
`openai/gpt-5-codex`
`openai/gpt-5-image`
`openai/gpt-5-mini`
`openai/gpt-5-nano`
`openai/gpt-oss-120b`
`openai/gpt-oss-20b`
`openai/o4-mini`
`openrouter/cypher-alpha:free`
`openrouter/horizon-alpha`
`openrouter/horizon-beta`
`openrouter/sonoma-dusk-alpha`
`openrouter/sonoma-sky-alpha`
`qwen/qwen-2.5-coder-32b-instruct`
`qwen/qwen2.5-vl-32b-instruct:free`
`qwen/qwen2.5-vl-72b-instruct`
`qwen/qwen2.5-vl-72b-instruct:free`
`qwen/qwen3-14b:free`
`qwen/qwen3-235b-a22b-07-25`
`qwen/qwen3-235b-a22b-07-25:free`
`qwen/qwen3-235b-a22b-thinking-2507`
`qwen/qwen3-235b-a22b:free`
`qwen/qwen3-30b-a3b-instruct-2507`
`qwen/qwen3-30b-a3b-thinking-2507`
`qwen/qwen3-30b-a3b:free`
`qwen/qwen3-32b:free`
`qwen/qwen3-8b:free`
`qwen/qwen3-coder`
`qwen/qwen3-coder:free`
`qwen/qwen3-max`
`qwen/qwen3-next-80b-a3b-instruct`
`qwen/qwen3-next-80b-a3b-thinking`
`qwen/qwq-32b:free`
`rekaai/reka-flash-3`
`sarvamai/sarvam-m:free`
`thudm/glm-z1-32b:free`
`tngtech/deepseek-r1t2-chimera:free`
`x-ai/grok-3`
`x-ai/grok-3-beta`
`x-ai/grok-3-mini`
`x-ai/grok-3-mini-beta`
`x-ai/grok-4`
`x-ai/grok-4-fast`
`x-ai/grok-4-fast:free`
`x-ai/grok-code-fast-1`
`z-ai/glm-4.5`
`z-ai/glm-4.5-air`
`z-ai/glm-4.5-air:free`
`z-ai/glm-4.5v`
`z-ai/glm-4.6`

Usage


import { Agent } from "@mastra/core";
 
const agent = new Agent({
  name: "my-agent",
  instructions: "You are a helpful assistant",
  model: "openrouter/anthropic/claude-3.5-haiku"
});

Mastra uses the OpenAI-compatible /chat/completions endpoint. Some provider-specific features may not be available. Check the OpenRouter documentation for details.

Available Models

Model

anthropic/claude-3.5-haiku

anthropic/claude-3.7-sonnet

anthropic/claude-haiku-4.5

anthropic/claude-opus-4

anthropic/claude-opus-4.1

anthropic/claude-sonnet-4

anthropic/claude-sonnet-4.5

cognitivecomputations/dolphin3.0-mistral-24b

cognitivecomputations/dolphin3.0-r1-mistral-24b

deepseek/deepseek-chat-v3-0324

deepseek/deepseek-chat-v3.1

deepseek/deepseek-r1-0528-qwen3-8b:free

deepseek/deepseek-r1-0528:free

deepseek/deepseek-r1-distill-llama-70b

deepseek/deepseek-r1-distill-qwen-14b

deepseek/deepseek-r1:free

deepseek/deepseek-v3-base:free

deepseek/deepseek-v3.1-terminus

featherless/qwerky-72b

google/gemini-2.0-flash-001

google/gemini-2.0-flash-exp:free

google/gemini-2.5-flash

google/gemini-2.5-flash-lite

google/gemini-2.5-flash-lite-preview-09-2025

google/gemini-2.5-flash-preview-09-2025

google/gemini-2.5-pro

google/gemini-2.5-pro-preview-05-06

google/gemini-2.5-pro-preview-06-05

google/gemma-2-9b-it:free

google/gemma-3-12b-it

google/gemma-3-27b-it

google/gemma-3n-e4b-it

google/gemma-3n-e4b-it:free

meta-llama/llama-3.2-11b-vision-instruct

meta-llama/llama-3.3-70b-instruct:free

meta-llama/llama-4-scout:free

microsoft/mai-ds-r1:free

mistralai/codestral-2508

mistralai/devstral-medium-2507

mistralai/devstral-small-2505

mistralai/devstral-small-2505:free

mistralai/devstral-small-2507

mistralai/mistral-7b-instruct:free

mistralai/mistral-medium-3

mistralai/mistral-medium-3.1

mistralai/mistral-nemo:free

mistralai/mistral-small-3.1-24b-instruct

mistralai/mistral-small-3.2-24b-instruct

mistralai/mistral-small-3.2-24b-instruct:free

moonshotai/kimi-dev-72b:free

moonshotai/kimi-k2

moonshotai/kimi-k2-0905

moonshotai/kimi-k2:free

nousresearch/deephermes-3-llama-3-8b-preview

nousresearch/hermes-4-405b

nousresearch/hermes-4-70b

openai/gpt-4.1

openai/gpt-4.1-mini

openai/gpt-4o-mini

openai/gpt-5

openai/gpt-5-chat

openai/gpt-5-codex

openai/gpt-5-image

openai/gpt-5-mini

openai/gpt-5-nano

openai/gpt-oss-120b

openai/gpt-oss-20b

openai/o4-mini

openrouter/cypher-alpha:free

openrouter/horizon-alpha

openrouter/horizon-beta

openrouter/sonoma-dusk-alpha

openrouter/sonoma-sky-alpha

qwen/qwen-2.5-coder-32b-instruct

qwen/qwen2.5-vl-32b-instruct:free

qwen/qwen2.5-vl-72b-instruct

qwen/qwen2.5-vl-72b-instruct:free

qwen/qwen3-14b:free

qwen/qwen3-235b-a22b-07-25

qwen/qwen3-235b-a22b-07-25:free

qwen/qwen3-235b-a22b-thinking-2507

qwen/qwen3-235b-a22b:free

qwen/qwen3-30b-a3b-instruct-2507

qwen/qwen3-30b-a3b-thinking-2507

qwen/qwen3-30b-a3b:free

qwen/qwen3-32b:free

qwen/qwen3-8b:free

qwen/qwen3-coder

qwen/qwen3-coder:free

qwen/qwen3-max

qwen/qwen3-next-80b-a3b-instruct

qwen/qwen3-next-80b-a3b-thinking

qwen/qwq-32b:free

rekaai/reka-flash-3

sarvamai/sarvam-m:free

thudm/glm-z1-32b:free

tngtech/deepseek-r1t2-chimera:free

x-ai/grok-3

x-ai/grok-3-beta

x-ai/grok-3-mini

x-ai/grok-3-mini-beta

x-ai/grok-4

x-ai/grok-4-fast

x-ai/grok-4-fast:free

x-ai/grok-code-fast-1

z-ai/glm-4.5

z-ai/glm-4.5-air

z-ai/glm-4.5-air:free

z-ai/glm-4.5v

z-ai/glm-4.6