Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, succeeding Claude Sonnet 5 as a direct upgrade. It is especially strong at building features, fixing bugs, and producing...
Model details →Anthropic: Claude Sonnet 5.5 (batch) vs OpenAI: GPT-6.1 Sol
Anthropic: Claude Sonnet 5.5 (batch) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
GPT-6.1 Sol is an upgrade to GPT-6 Sol from OpenAI, positioned below the flagship GPT-6 Astra in the GPT-6 series. It is suited for agentic coding, computer use, document-heavy professional...
Model details →Side-by-side comparison
| Capability | Anthropic: Claude Sonnet 5.5 (batch) | OpenAI: GPT-6.1 Sol | Winner |
|---|---|---|---|
| Context window Maximum number of input tokens the model can attend to in a single request. | 1M | 1.1M | 🏆 OpenAI: GPT-6.1 Sol |
| Input price (per 1M) Cost per million input tokens billed by the provider. | $1.00 | $2.00 | 🏆 Anthropic: Claude Sonnet 5.5 (batch) |
| Output price (per 1M) Cost per million output tokens billed by the provider. | $5.00 | $10.00 | 🏆 Anthropic: Claude Sonnet 5.5 (batch) |
| Tool / function calling First-class support for emitting structured tool calls. | Yes | Yes | Tie |
| Vision input Accepts image inputs alongside text. | Yes | Yes | Tie |
| Reasoning mode Internal chain-of-thought / extended-thinking support. | Yes | Yes | Tie |
Frequently asked questions
Is Anthropic: Claude Sonnet 5.5 (batch) better than OpenAI: GPT-6.1 Sol?
Anthropic: Claude Sonnet 5.5 (batch) wins on 2 of 6 axes — pricing and capability skew in its favour for most workloads.
What's the price difference between Anthropic: Claude Sonnet 5.5 (batch) and OpenAI: GPT-6.1 Sol?
Input: $1.00 vs $2.00 per 1M tokens. Output: $5.00 vs $10.00 per 1M tokens.
What context windows do Anthropic: Claude Sonnet 5.5 (batch) and OpenAI: GPT-6.1 Sol support?
Anthropic: Claude Sonnet 5.5 (batch) supports up to 1M tokens. OpenAI: GPT-6.1 Sol supports up to 1.1M tokens.
Do both Anthropic: Claude Sonnet 5.5 (batch) and OpenAI: GPT-6.1 Sol support tool calling?
Anthropic: Claude Sonnet 5.5 (batch): yes. OpenAI: GPT-6.1 Sol: yes.