Claude Sonnet 5.5 vs OpenAI: GPT-6.1 Terra
anthropic/claude-sonnet-5.5 · openai/gpt-6.1-terra
As of November 1, 2026, OpenAI: GPT-6.1 Terra is the cheaper API on UberLLM: $0.0565 per million input tokens and $0.2825 per million output, versus $0.8040 / $4.02 for Claude Sonnet 5.5, about 93% less when output is 3 tokens for every input token. These are the median prices buyers paid over the last 24 hours. Both work with one OpenAI-compatible key and UberLLM adds no fee. Choose OpenAI: GPT-6.1 Terra to cut cost; choose Claude Sonnet 5.5 when its capabilities fit your task better.
Claude Sonnet 5.5 vs OpenAI: GPT-6.1 Terra, side by side
| Spec | Claude Sonnet 5.5 | OpenAI: GPT-6.1 Terra |
|---|---|---|
| Price · input / 1M | $0.8040 | $0.0565 |
| Price · output / 1M | $4.02 | $0.2825 |
| Context length | 1,000,000 | 1,050,000 |
| Max output tokens | 128,000 | 128,000 |
| Input modalities | text, image, file | text, image, file |
| Output modalities | text | text |
| Tools / functions | Yes | Yes |
| Vision (image input) | Yes | Yes |
| Reasoning | Yes | Yes |
| % off list | 60% off | 94% off |
| First token, median (7 days) | 2.9 s (134 requests) | — |
Median prices buyers paid on UberLLM over the last 24 hours. No UberLLM fee on requests; adding credit by card costs 5.5% + $0.50. Updated November 1, 2026. A price more than 70% below list is what buyers were billed, not an error. Why so cheap?
Claude Sonnet 5.5 vs OpenAI: GPT-6.1 Terra — FAQ
Is Claude Sonnet 5.5 or OpenAI: GPT-6.1 Terra cheaper?
OpenAI: GPT-6.1 Terra is cheaper on a blended token mix, by about 93%. A request costs what its provider charged, UberLLM adds no fee, and every request is listed with its cost in Activity.
What's the price difference between Claude Sonnet 5.5 and OpenAI: GPT-6.1 Terra?
Claude Sonnet 5.5: $0.8040 in / $4.02 out per 1M tokens. OpenAI: GPT-6.1 Terra: $0.0565 in / $0.2825 out per 1M tokens. That's roughly a 93% blended difference. Prices are live; UberLLM adds no fee.
Can I use both Claude Sonnet 5.5 and OpenAI: GPT-6.1 Terra with one API?
Yes. Both are served through a single OpenAI-compatible endpoint — set the base URL to https://api.uberllm.dev/v1 and your UberLLM key, then switch between them by changing the model id. Anthropic SDKs work via https://api.uberllm.dev/v1/messages.