Balanced Claude model for coding, analysis, agent workflows, and cost control
Claude Sonnet 4.5 (latest) by anthropic is offered by 22 providers on this page. Public prices are shown for 20 of them. Its official list price is $3.00 per 1M input tokens and $15.00 per 1M output tokens.
Artificial Analysis rates it 20.7 on the Intelligence Index, with 52.1 for coding and 15.8 for agentic tasks. Against its lowest blended price of $5.98 per 1M, that is roughly 3 index points per dollar, which is the value ratio the leaderboards rank on. Median output speed is 44 tokens per second, with 14.38s to the first token. Running one task of the Artificial Analysis suite costs about $0.5566, which reflects how many tokens its reasoning consumes rather than the unit price alone.
The context window is 1,000,000 tokens at the reference host, but hosts report different limits, from 200,000 to 1,000,000, so the usable window depends on the provider you pick. It supports reasoning, tool use, and structured output. Accepted input modalities are Text, Image, and PDF. Its training knowledge cuts off at 2025-07-31.
Quality is independently evaluated by Artificial Analysis. Speed/latency are model-level medians.
| Provider | Tier | Input | Output | Cache read | Cache write | Context | Output limit | Status |
|---|---|---|---|---|---|---|---|---|
| Cortecs claude-4-5-sonnet | Gateway | $2.99 | $14.95 | $0.33 | $4.08 | 200,000 ⚠ | 64,000 | |
| AnthropicOfficial | First-party | $3.00 | $15.00 | $0.30 | $3.75 | 1,000,000 | 64,000 | |
| NEAR AI Cloud | Gateway | $3.00 | $15.00 | $0.30 | $3.75 | 200,000 ⚠ | 64,000 | |
| Databricks databricks-claude-sonnet-4-5 | Cloud | $3.00 | $15.00 | $0.30 | $3.75 | 200,000 ⚠ | 64,000 | |
| Kilo Gateway anthropic/claude-sonnet-4.5 | Gateway | $3.00 | $15.00 | $0.30 | $3.75 | 1,000,000 | 64,000 | |
| OpenRouter anthropic/claude-sonnet-4.5 | Gateway | $3.00 tiered >200K: $6.00 | $15.00 | $0.30 | $3.75 | 1,000,000 | 64,000 | |
| Impossibl | Gateway | $3.00 | $15.00 | $0.30 | $3.75 | 200,000 ⚠ | 64,000 | |
| Cloudflare AI Gateway anthropic/claude-sonnet-4.5 | Cloud | $3.00 | $15.00 | $0.30 | $3.75 | 200,000 ⚠ | 64,000 | |
| OrcaRouter anthropic/claude-sonnet-4.5 | Gateway | $3.00 | $15.00 | $0.30 | $3.75 | 1,000,000 | 64,000 | |
| Ofox anthropic/claude-sonnet-4.5 | Gateway | $3.00 | $15.00 | $0.30 | $3.75 | 200,000 ⚠ | 64,000 | |
Sorted by blended price (input×0.75 + output×0.25) asc. The official channel always shows regardless of rank. Whether a gateway's low price is actually usable can't be verified.
Interleaved thinking (reasoning between tool calls) is declared by 3 of 22 providers.
1 / 22 providers expose no reasoning control (reasoning_options: []).
| Name | Conditions | Score | Metric | Source |
|---|---|---|---|---|
| SWE-Bench Pro | dataset: public | 43.6 | resolve rate | Source ↗ |
The same benchmark scores very differently across harness / dataset, so the qualifying conditions must be shown together.
Individual evaluations run by Artificial Analysis, on the same reasoning tier as the intelligence score above. Each benchmark has its own task set and harness, so rows are not comparable with one another. The Intelligence Index above draws on a different, newer set of evaluations.