{
  "schema_version": 1,
  "snapshot_id": "openrouter-free-models-2026-08-30",
  "retrieved_at": "2026-08-30T10:46:46Z",
  "update_mode": "manual",
  "sources": [
    {
      "kind": "models",
      "method": "GET",
      "url": "https://openrouter.ai/api/v1/models?output_modalities=text",
      "response_sha256": "6711caf4019bcf0a37eb0095472c6b93005ba928677524799ee428a483637c33"
    },
    {
      "kind": "zdr_endpoints",
      "method": "GET",
      "url": "https://openrouter.ai/api/v1/endpoints/zdr",
      "response_sha256": "4980c6778224dde6214bf89a76353830a71acd4f497222d4e54ac20f32453c95"
    }
  ],
  "eligibility": {
    "pool_size": 6,
    "rules": [
      "Listed as a current :free model in the OpenRouter catalog snapshot",
      "Supports tools and tool choice",
      "Supports response_format or structured_outputs",
      "Provides at least 128K of free-endpoint context",
      "Includes all three published Artificial Analysis indices used by the formula"
    ]
  },
  "scoring": {
    "weights": {
      "general_intelligence_percentile": 40,
      "agentic_percentile": 25,
      "coding_percentile": 10,
      "free_endpoint_context": 15,
      "input_modalities": 10
    },
    "percentile_rule": "100 * count(pool values strictly lower than this value) / (pool_size - 1); equal values share a percentile",
    "rounding_rule": "Round each weighted benchmark component to the nearest integer before adding integer context and modality points",
    "tie_break": "Higher total score first, then canonical model ID ascending",
    "context_scope": "Context lengths are the values reported for the exact OpenRouter :free model IDs in this snapshot. They are not maximum-context claims for every deployment, paid endpoint, or direct-provider version of the underlying model.",
    "context_points": {
      "at_least_1000000": 15,
      "at_least_512000": 12,
      "at_least_256000": 9,
      "at_least_128000": 6,
      "below_128000": 0
    },
    "modality_points": {
      "image_input": 6,
      "audio_or_video_input": 4
    }
  },
  "records": [
    {
      "id": "minimax/minimax-m3:free",
      "name": "MiniMax M3",
      "canonical_slug": "minimax/minimax-m3-20260531",
      "model_url": "https://openrouter.ai/minimax/minimax-m3:free",
      "model_endpoint_url": "https://openrouter.ai/api/v1/models/minimax/minimax-m3:free/endpoints",
      "benchmark_source_url": "https://artificialanalysis.ai/models/minimax-m3",
      "benchmark_version": "Artificial Analysis Intelligence Index v4.1.1",
      "serving_provider": "GMICloud",
      "endpoint_tag": "gmicloud/fp8",
      "zdr_listed": false,
      "context_length": 1048576,
      "input_modalities": ["text", "image", "video"],
      "supported_parameters": ["include_reasoning", "max_tokens", "reasoning", "response_format", "seed", "temperature", "tool_choice", "tools", "top_p"],
      "pricing": { "prompt": "0", "completion": "0" },
      "benchmarks": { "intelligence_index": 45.4, "agentic_index": 36.1, "coding_index": 58.6 }
    },
    {
      "id": "z-ai/glm-5.2:free",
      "name": "GLM 5.2",
      "canonical_slug": "z-ai/glm-5.2-20260616",
      "model_url": "https://openrouter.ai/z-ai/glm-5.2:free",
      "model_endpoint_url": "https://openrouter.ai/api/v1/models/z-ai/glm-5.2:free/endpoints",
      "benchmark_source_url": "https://artificialanalysis.ai/models/glm-5-2",
      "benchmark_version": "Artificial Analysis Intelligence Index v4.1.1",
      "serving_provider": "Decart",
      "endpoint_tag": "decart/fp4",
      "zdr_listed": true,
      "context_length": 256000,
      "input_modalities": ["text"],
      "supported_parameters": ["frequency_penalty", "include_reasoning", "max_tokens", "min_p", "presence_penalty", "reasoning", "reasoning_effort", "repetition_penalty", "response_format", "seed", "stop", "structured_outputs", "temperature", "tool_choice", "tools", "top_k", "top_p"],
      "pricing": { "prompt": "0", "completion": "0" },
      "benchmarks": { "intelligence_index": 52.6, "agentic_index": 45.7, "coding_index": 68.8 }
    },
    {
      "id": "minimax/minimax-m2.7:free",
      "name": "MiniMax M2.7",
      "canonical_slug": "minimax/minimax-m2.7-20260318",
      "model_url": "https://openrouter.ai/minimax/minimax-m2.7:free",
      "model_endpoint_url": "https://openrouter.ai/api/v1/models/minimax/minimax-m2.7:free/endpoints",
      "benchmark_source_url": "https://artificialanalysis.ai/models/minimax-m2-7",
      "benchmark_version": "Artificial Analysis Intelligence Index v4.1.1",
      "serving_provider": "GMICloud",
      "endpoint_tag": "gmicloud/fp8",
      "zdr_listed": false,
      "context_length": 196608,
      "input_modalities": ["text"],
      "supported_parameters": ["include_reasoning", "max_tokens", "reasoning", "response_format", "seed", "temperature", "tool_choice", "tools", "top_p"],
      "pricing": { "prompt": "0", "completion": "0" },
      "benchmarks": { "intelligence_index": 38.9, "agentic_index": 25.9, "coding_index": 52.6 }
    },
    {
      "id": "google/gemma-4-31b-it:free",
      "name": "Gemma 4 31B",
      "canonical_slug": "google/gemma-4-31b-it-20260402",
      "model_url": "https://openrouter.ai/google/gemma-4-31b-it:free",
      "model_endpoint_url": "https://openrouter.ai/api/v1/models/google/gemma-4-31b-it:free/endpoints",
      "benchmark_source_url": "https://artificialanalysis.ai/models/gemma-4-31b",
      "benchmark_version": "Artificial Analysis Intelligence Index v4.1.1",
      "serving_provider": "Google AI Studio",
      "endpoint_tag": "google-ai-studio",
      "zdr_listed": false,
      "context_length": 262144,
      "input_modalities": ["text", "image", "video"],
      "supported_parameters": ["include_reasoning", "max_tokens", "reasoning", "response_format", "seed", "temperature", "tool_choice", "tools", "top_p"],
      "pricing": { "prompt": "0", "completion": "0" },
      "benchmarks": { "intelligence_index": 29.7, "agentic_index": 14.4, "coding_index": 43.4 }
    },
    {
      "id": "google/gemma-4-26b-a4b-it:free",
      "name": "Gemma 4 26B A4B",
      "canonical_slug": "google/gemma-4-26b-a4b-it-20260403",
      "model_url": "https://openrouter.ai/google/gemma-4-26b-a4b-it:free",
      "model_endpoint_url": "https://openrouter.ai/api/v1/models/google/gemma-4-26b-a4b-it:free/endpoints",
      "benchmark_source_url": "https://artificialanalysis.ai/models/gemma-4-26b-a4b",
      "benchmark_version": "Artificial Analysis Intelligence Index v4.1.1",
      "serving_provider": "Google AI Studio",
      "endpoint_tag": "google-ai-studio",
      "zdr_listed": false,
      "context_length": 262144,
      "input_modalities": ["text", "image", "video"],
      "supported_parameters": ["include_reasoning", "max_tokens", "reasoning", "response_format", "seed", "temperature", "tool_choice", "tools", "top_p"],
      "pricing": { "prompt": "0", "completion": "0" },
      "benchmarks": { "intelligence_index": 26.1, "agentic_index": 11, "coding_index": 39.3 }
    },
    {
      "id": "nvidia/nemotron-3-super-120b-a12b:free",
      "name": "Nemotron 3 Super",
      "canonical_slug": "nvidia/nemotron-3-super-120b-a12b-20230311",
      "model_url": "https://openrouter.ai/nvidia/nemotron-3-super-120b-a12b:free",
      "model_endpoint_url": "https://openrouter.ai/api/v1/models/nvidia/nemotron-3-super-120b-a12b:free/endpoints",
      "benchmark_source_url": "https://artificialanalysis.ai/models/nvidia-nemotron-3-super-120b-a12b",
      "benchmark_version": "Artificial Analysis Intelligence Index v4.1.1",
      "serving_provider": "Nvidia",
      "endpoint_tag": "nvidia",
      "zdr_listed": false,
      "context_length": 262144,
      "input_modalities": ["text"],
      "supported_parameters": ["include_reasoning", "max_tokens", "reasoning", "reasoning_effort", "response_format", "seed", "structured_outputs", "temperature", "tool_choice", "tools", "top_p"],
      "pricing": { "prompt": "0", "completion": "0" },
      "benchmarks": { "intelligence_index": 25.7, "agentic_index": 8.8, "coding_index": 37.7 }
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  ]
}
