Claude Haiku 4.5 vs Sonar Deep Research
At a Glance
| Compare | Claude Haiku 4.5Anthropic |  Sonar Deep ResearchPerplexity |
|---|---|---|
| Intelligence, Cost, and Efficiency | ||
| IntelligenceHigher is better · MM Intelligence v2.5 | #43 of 469.0 score · 2/3 sources · provisional · missing LiveBench · full-core range 6.0–39.3 | UnrankedNot in the 46-model eligible cohort |
| Pricing and Limits | ||
| Input priceFrom · USD / 1M tokens | $1.00Anthropic ↗ · Sep 3, 2026 | $2.00Openrouter ↗ · Sep 22, 2026 |
| Output priceFrom · USD / 1M tokens | $5.00Anthropic ↗ · Sep 3, 2026 | $8.00Openrouter ↗ · Sep 22, 2026 |
| Context windowMaximum documented tokens | 200K | 128K |
| Model facts checked | Aug 28, 2026View model evidence → | Aug 29, 2026View model evidence → |
Token prices are the lowest available sourced USD rates; input and output may use different providers. Cost ranking estimates output spend on LiveBench, not a full request bill. Ranking methodology →
Available Benchmarks
Side-by-Side Facts
| Field | Claude Haiku 4.5 | Sonar Deep Research |
|---|---|---|
| Developer | Anthropic | Perplexity |
| Family | Claude 4 5 | Sonar |
| Model | Claude Haiku 4.5 | Sonar Deep Research |
| Version | Claude Haiku 4.5 | Sonar Deep Research |
| Lifecycle | active | active |
| Released | 2025-10-15 | Unknown |
| Knowledge cutoff | Unknown | Unknown |
| Input modalities | Text, Image | Text |
| Output modalities | Text | Text |
| Context window | 200K | 128K |
| Total parameters | Unknown | Unknown |
| Active parameters | Unknown | Unknown |
| License | Unknown | Unknown |
| Open weights | No | No |
| API available | Yes | Yes |
| Self-hostable | No | No |
| Provider access | Anthropic (Standard), Deepinfra (Standard) | Openrouter (Standard), Perplexity (Standard) |
| Capabilities | chat, generation, reasoning, tools | chat, citations, reasoning, research, search |
Claude Haiku 4.5 Capabilities
Sonar Deep Research Capabilities
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Primary Evidence
Sources and Freshness
Questions
Claude Haiku 4.5 vs Sonar Deep Research FAQs
Is Claude Haiku 4.5 or Sonar Deep Research better for coding?+
This comparison does not currently contain a protocol-matched coding benchmark for both Claude Haiku 4.5 and Sonar Deep Research, so Model Markets cannot name a coding leader from pricing, context size, or capability labels alone.
Which is cheaper, Claude Haiku 4.5 or Sonar Deep Research?+
Claude Haiku 4.5 is $1.00 and Sonar Deep Research is $2.00 per million tokens, so Claude Haiku 4.5 is cheaper on this metric. Claude Haiku 4.5 is $5.00 and Sonar Deep Research is $8.00 per million tokens, so Claude Haiku 4.5 is cheaper on this metric.
Which has a larger context window, Claude Haiku 4.5 or Sonar Deep Research?+
Claude Haiku 4.5 has the larger sourced context window. Claude Haiku 4.5 supports 200K and Sonar Deep Research supports 128K.
Which performs better in benchmarks, Claude Haiku 4.5 or Sonar Deep Research?+
There is no overall benchmark winner: At least two independently verified, protocol-matched benchmarks are required for an overall winner.
Can Claude Haiku 4.5 or Sonar Deep Research be self-hosted?+
Both models have the same recorded self-hosting status: unsupported. Claude Haiku 4.5 is not marked open weight; Sonar Deep Research is not marked open weight.
Can Claude Haiku 4.5 and Sonar Deep Research understand images?+
Claude Haiku 4.5 is documented with image input; Sonar Deep Research is not documented with image input. This reflects supported input modalities, not vision quality.
Which can generate longer answers, Claude Haiku 4.5 or Sonar Deep Research?+
Neither has a larger sourced maximum output. Claude Haiku 4.5 is 64K and Sonar Deep Research is —.
Do Claude Haiku 4.5 and Sonar Deep Research support reasoning and tool use?+
Claude Haiku 4.5: reasoning, tool calling, and image input. Sonar Deep Research: reasoning. Feature support does not establish relative quality.
Which is available from more inference providers, Claude Haiku 4.5 or Sonar Deep Research?+
Claude Haiku 4.5 has 2 sourced provider routes; Sonar Deep Research has 2, a tie.
Which offers better value, Claude Haiku 4.5 or Sonar Deep Research?+
There is no universal value winner. Compare the input and output prices above with the matched benchmark result for your workload: cheaper tokens can be offset by different quality, token usage, latency, or provider availability.