ELM Models Available Through the API

This section introduces the models available in ELM’s web-based chat interface and through the API. Models are grouped by hosting arrangement, provider or capability.

Expand each section to explore the available options. For model comparisons and guidance, visit the ELM Model Guide.

Models available in our web-based chat interface 

  • EuroLLM
  • Llama 3.3
  • Mistral Small 4
  • Qwen 3.5 397B 

  • Claude Opus 4.8 
  • Claude Opus 5 
  • Claude Sonnet 4.6 
  • Claude Sonnet 5 

  • GPT 4 Turbo 
  • GPT 4.1 
  • GPT 4.1 Mini 
  • GPT 4.1 Nano 
  • GPT 4o 
  • GPT 4o Mini 
  • GPT 5.1 
  • GPT 5.2 
  • GPT 5.4 
  • GPT 5.4 Mini 
  • GPT 5.4 Nano 
  • GPT 5.5 
  • GPT 5.6 Luna 
  • GPT 5.6 Sol 
  • GPT 5.6 Terra 
  • GPT-6 Astra 
  • o1 
  • o3 

  • Gemini 3.1 Flash Lite 
  • Gemini 3.1 Pro 
  • Gemini 3.5 Flash 

Models available via API

The ELM API supports locally hosted and OpenAI models. Availability depends on your institution’s configuration and API-key permissions. Check the /models endpoint and API documentation for available model IDs and supported operations. 

Models listed in the web-based chat section are not necessarily available through the API. 

  • EuroLLM — utter-project/EuroLLM-22B-Instruct-2512 
  • Llama 3.3 — meta-llama/Llama-3.3-70B-Instruct 
  • Mistral Small 4 — mistralai/Mistral-Small-4-119B-2603 
  • Qwen 3.5 397B — Qwen/Qwen3.5-397B-A17B-FP8 

  • gpt-5.5 
  • gpt-5.5-pro 
  • gpt-5.4 
  • gpt-5.4-pro 
  • gpt-5.4-mini 
  • gpt-5.4-nano 
  • gpt-5-mini 
  • gpt-5-nano 
  • gpt-5 
  • gpt-4.1 

gpt-image-2 

Note: Access to image creation models is disabled by default. Access can be provided with approval, including an ethics review. The ELM team is investigating ethical and climate-sensitive image creation models. 


  • gpt-realtime-2 
  • gpt-realtime-translate 
  • gpt-realtime-whisper 
  • gpt-realtime-1.5 
  • gpt-realtime 
  • gpt-realtime-mini 
  • gpt-audio-1.5 
  • gpt-audio 
  • gpt-audio-mini 
  • gpt-4o-audio-preview 
  • gpt-4o-mini-audio-preview 
  • gpt-4o-realtime-preview 
  • gpt-4o-mini-realtime-preview 
  • gpt-4o-transcribe 
  • gpt-4o-mini-transcribe 
  • gpt-4o-transcribe-diarize 
  • gpt-4o-mini-tts 
  • tts-1 
  • tts-1-hd 
  • whisper-1 

gpt-5.3-codex 


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