LLM API cost by model
Each model priced at the same five standard workloads, with its rank against every other model.
- GPT-6 Astra · £18.65 per 1,000 requests (short chat)
- GPT-6.1 Sol · £3.73 per 1,000 requests (short chat)
- GPT-6.1 Terra · £1.87 per 1,000 requests (short chat)
- GPT-6 Luna · £0.187 per 1,000 requests (short chat)
- Claude Fable 5.2 · £14.92 per 1,000 requests (short chat)
- Claude Opus 5.5 · £7.46 per 1,000 requests (short chat)
- Claude Sonnet 5.5 · £3.73 per 1,000 requests (short chat)
- Claude Haiku 5.5 · £0.187 per 1,000 requests (short chat)
- Gemini 4 Argon · £3.73 per 1,000 requests (short chat)
- Gemini 3.8 Flash · £1.40 per 1,000 requests (short chat)
- Gemini 3.5 Flash-Lite · £0.783 per 1,000 requests (short chat)
- Mistral Large 4 · £0.992 per 1,000 requests (short chat)
- Mistral Small 4 · £0.246 per 1,000 requests (short chat)