Compare models
Put up to 4 models beside each other — token prices, context windows, capabilities and provider, from the same catalogue the model pages read.
4 is the maximum. Remove one to add another.
| Attribute | Claude Sonnet 5.5claude-sonnet-5.5 | Grok 4.7grok-4.7 | Grok STT 1.0grok-stt-1.0 | S2 Pros2-pro |
|---|---|---|---|---|
| Pricing | ||||
| Input | $2.00 / 1M | $1.60 / 1M | $0 / 1M | $0 / 1M |
| Output | $10.00 / 1M | $4.80 / 1M | $0 / 1M | $0 / 1M |
| Cache Write (5m) | $2.50 / 1M | $1.60 / 1M | Not applicable | Not applicable |
| Cache Write (1h) | $4.00 / 1M | $1.60 / 1M | Not applicable | Not applicable |
| Cache Read | $0.20 / 1M | $1.60 / 1M | Not applicable | Not applicable |
| Web Search | $0 / 1M | $0 / 1M | $0 / 1M | $0 / 1M |
| Context | ||||
| Max context | 1M | 500K | N/A | N/A |
| Max output | N/A | N/A | N/A | N/A |
| Capabilities | ||||
| Vision | Yes | Yes | No | No |
| Function Calling | Yes | Yes | No | No |
| JSON Mode | Yes | Yes | No | No |
| Streaming | Yes | Yes | No | No |
| Catalogue | ||||
| Provider | Anthropic | SpaceXAI | xAI | Fish Audio |
| Category | chat | chat | voice | voice |
| Charge type | Pay As You Go | Pay As You Go | Pay As You Go | Pay As You Go |
| Released | — | — | 2026-07-23 | 2026-07-29 |
| Description | ||||
| Summary | Claude Sonnet 5.5 is Anthropic's Sonnet-class model for well-scoped everyday work, serving as a direct upgrade to Sonnet 5. It excels at feature development, bug fixing, and creating polished documents, presentations, and spreadsheets, while offering clearer writing and communication than its predecessor. | Grok 4.7 is SpaceXAI's flagship model for coding, agentic workflows, and professional knowledge work, succeeding Grok 4.6. It is particularly strong at long-running software engineering, self-verification, and long-context execution, while improving capabilities in document drafting, presentations, and other professional tasks. Trained with extended reinforcement learning focused on multi-hour problems, Grok 4.7 is optimized for sustained, complex task execution and natively supports the Grok Bot harness for conversational workflows. It also introduces an enhanced safeguard stack designed to combine strong jailbreak resistance with low refusal rates for legitimate technical work. Reported benchmark results use xhigh reasoning effort. | xAI Grok STT 1.0 speech-to-text. Billed per second of audio. | Fish Audio S2 Pro text-to-speech. Billed per UTF-8 byte of input text. |