Search & research
Answer engines and assistants that search the web and cite their sources, deep-research modes that read dozens of pages and write a report, the models behind them, and search APIs and open engines you can run yourself.
Models are ranked by LMArena Search Arena (style control). Tools with their own result on DeepResearch Bench (RACE, GPT-5.5 judge) or Artificial Analysis Search Index (Search APIs) are ranked by it (each board ranks one kind of product); other tools inherit the tier of the best model they offer. How we rank.
- Best overallSGPT-6.1 Sol1,250 on LMArena Search Arena (style control)
- Best valueAGPT-6 LunaTier A for $0.2/M tokens
- Best free startSExaFree tier · paid plans · 80 on Artificial Analysis Search Index (Search APIs)
- Best local (≤24 GB GPU)No qualifying option yet
- Tier: how close to the best result on the task's main public benchmark
- Outlined: a tool inherits the tier of the best model it offers
- No public result yet
- Cloud · Local: runs on your own hardware
Models
The engines themselves. Use them through an API or inside the apps on the right.
Nothing tracked yet
Apps
Ready-made apps with a UI: sign in or install, then start.
Search APIs & engines
Web search for your own apps and agents, and open search or research engines you can host yourself.
Quality vs. price
LMArena Search Arena (style control) score against API price (USD per 1M tokens, blended 3:1 input:output, log scale). Up and to the left is better; the line joins the models that nothing else beats on both.
- Closed models
- Open-weights models
- Best-value frontier
Show as table
| Model | Weights | LMArena Search Arena (style control) | Price | Frontier |
|---|---|---|---|---|
| GPT-6.1 Sol | Closed | 1,250 | $4/M tokens | Yes |
| GPT-6 Astra | Closed | 1,246 | $20/M tokens | |
| Claude Fable 5.1 | Closed | 1,233 | $20/M tokens | |
| Qwen3.8-Max | Closed | 1,230 | $3/M tokens | Yes |
| Claude Opus 5.5 | Closed | 1,211 | $8/M tokens | |
| GPT-6 Luna | Closed | 1,209 | $0.2/M tokens | Yes |
| Gemini 3.1 Pro (Preview) | Closed | 1,207 | $4.5/M tokens | |
| Sonar Pro | Closed | 1,143 | $6/M tokens | |
| Sonar Reasoning Pro | Closed | 1,139 | $3.5/M tokens |
Quality vs. setup
The same tools as the map, placed by how good the results can be (up) and how much setup they take (right). Top-left is the easiest way to top quality; further right buys control, privacy or price at the cost of setup. Models are left out: you reach them through these tools.
- Cloud
- Local: runs on your hardware
- Hollow: tier inherited from the best model the tool offers
Not placed (no public result yet): Firecrawl, Open WebUI, SearXNG, Khoj, Vane (formerly Perplexica), GPT Researcher, Local Deep Research, Morphic, Brave Search, Consensus, DeepSeek, Doubao, Elicit, Felo, Google AI Mode, iAsk, Jina Search Foundation APIs, Kimi, Komo, Liner, Meta AI, Metaso AI Search, Qwen Chat, Undermind, Valyu, Vibe (formerly Le Chat)
Everything, in order
| Tier | Name | Approach | Runs | Rated by | Price | Skill |
|---|---|---|---|---|---|---|
| S | Exa | Search APIs & engines | Cloud | 80 on Artificial Analysis Search Index (Search APIs) | Free tier | intermediate |
| S | Perplexity AI | Search APIs & engines | Cloud | 80 on Artificial Analysis Search Index (Search APIs) | — | intermediate |
| S | OpenAI | Models | Cloud | 1,250 on LMArena Search Arena (style control) | $4/M tokens | — |
| S | OpenAI | Models | Cloud | 1,246 on LMArena Search Arena (style control) | $20/M tokens | — |
| S | Anthropic | Models | Cloud | 1,233 on LMArena Search Arena (style control) | $20/M tokens | — |
| S | Qwen3.8-Max Alibaba (Qwen) | Models | Cloud | 1,230 on LMArena Search Arena (style control) | $3/M tokens | — |
| S | Scira | Apps | Cloud | via GPT-6.1 Sol | Free tier · $15/mo | beginner |
| S | Microsoft Copilot Microsoft | Apps | Cloud | via GPT-6.1 Sol | Free tier · $9.99/mo | beginner |
| S | OpenRouter | Search APIs & engines | Cloud | via GPT-6.1 Sol | Free tier | intermediate |
| S | Anthropic | Apps | Cloud | via Claude Fable 5.1 | Free tier · $20/mo | beginner |
| A | Anthropic | Models | Cloud | 1,211 on LMArena Search Arena (style control) | $8/M tokens | — |
| A | OpenAI | Models | Cloud | 1,209 on LMArena Search Arena (style control) | $0.2/M tokens | — |
| A | Google | Models | Cloud | 1,207 on LMArena Search Arena (style control) | $4.5/M tokens | — |
| A | Parallel Web Systems | Search APIs & engines | Cloud | 75 on Artificial Analysis Search Index (Search APIs) | Free tier | intermediate |
| A | Brave | Search APIs & engines | Cloud | 75 on Artificial Analysis Search Index (Search APIs) | Free tier | intermediate |
| A | Google | Apps | Cloud | 50 on DeepResearch Bench (RACE, GPT-5.5 judge) | Free tier · $4.99/mo | beginner |
| A | You.com | Search APIs & engines | Cloud | 74 on Artificial Analysis Search Index (Search APIs) | Free tier | intermediate |
| A | Baidu | Models | Cloud | 1,192 on LMArena Search Arena (style control) | — | — |
| A | OpenAI | Apps | Cloud | 48 on DeepResearch Bench (RACE, GPT-5.5 judge) | Free tier · $20/mo | beginner |
| A | Kagi | Apps | Cloud | via Gemini 3.1 Pro (Preview) | Free tier · $5/mo | beginner |
| B | Perplexity AI | Models | Cloud | 1,143 on LMArena Search Arena (style control) | $6/M tokens | — |
| B | Perplexity AI | Models | Cloud | 1,139 on LMArena Search Arena (style control) | $3.5/M tokens | — |
| B | Linkup | Search APIs & engines | Cloud | 68 on Artificial Analysis Search Index (Search APIs) | Free tier | intermediate |
| B | Perplexity AI | Apps + Search APIs & engines | Cloud | 43 on DeepResearch Bench (RACE, GPT-5.5 judge) | Free tier · $20/mo | beginner |
| B | SpaceXSI (formerly xAI) | Apps | Cloud | 41 on DeepResearch Bench (RACE, GPT-5.5 judge) | Free tier · $8/mo | beginner |
| B | Tavily | Search APIs & engines | Cloud | 66 on Artificial Analysis Search Index (Search APIs) | Free tier · $30/mo | intermediate |
| – | Firecrawl | Search APIs & engines | Local | No public result yet Cloud models: tier A | Free tier · $19/mo | intermediate |
| – | Open WebUI Inc. | Apps | Local | No public result yet | Free | intermediate |
| – | SearXNG SearXNG (open-source project) | Search APIs & engines | Local | No public result yet | Free | advanced |
| – | Khoj | Apps | Local | No public result yet | Free | intermediate |
| – | ItzCrazyKns (open-source project) | Apps | Local | No public result yet | Free | advanced |
| – | GPT Researcher (open-source project) | Search APIs & engines | Local | No public result yet | Free | advanced |
| – | LearningCircuit (open-source project) | Apps | Local | No public result yet | Free | advanced |
| – | Morphic (miurla) | Apps | Local | No public result yet | Free | intermediate |
| – | Brave | Apps | Cloud | No public result yet | — | beginner |
| – | Anthropic | Models | Cloud | No public result yet | $4/M tokens | — |
| – | Consensus | Apps | Cloud | No public result yet | — | beginner |
| – | DeepSeek | Apps | Cloud | No public result yet | Free | beginner |
| – | ByteDance | Apps | Cloud | No public result yet | Free tier | beginner |
| – | Elicit | Apps | Cloud | No public result yet | Free tier · $49/mo | beginner |
| – | Felo | Apps | Cloud | No public result yet | Free tier · $15/mo | beginner |
| – | Google | Models | Cloud | No public result yet | $1.5/M tokens | — |
| – | Google | Apps | Cloud | No public result yet | Free | beginner |
| – | xAI | Models | Cloud | No public result yet | $3/M tokens | — |
| – | iAsk.Ai | Apps | Cloud | No public result yet | Free tier | beginner |
| – | Jina AI (Elastic) | Search APIs & engines | Cloud | No public result yet | Free tier | intermediate |
| – | Moonshot AI | Apps | Cloud | No public result yet | Free tier | beginner |
| – | Komo | Apps | Cloud | No public result yet | Free tier | beginner |
| – | Liner | Apps | Cloud | No public result yet | Free tier · $18/mo | beginner |
| – | Meta | Apps | Cloud | No public result yet | Free tier | beginner |
| – | Metaso (秘塔科技) | Apps | Cloud | No public result yet | — | beginner |
| – | Alibaba (Qwen team) | Apps | Cloud | No public result yet | Free | beginner |
| – | Perplexity AI | Models | Cloud | No public result yet | $1/M tokens | — |
| – | Perplexity AI | Models | Cloud | No public result yet | $3.5/M tokens | — |
| – | Undermind | Apps | Cloud | No public result yet | Free tier · $16/mo | beginner |
| – | Valyu | Search APIs & engines | Cloud | No public result yet | — | intermediate |
| – | Mistral AI | Apps | Cloud | No public result yet | Free tier · $15/mo | beginner |
Benchmarks used
- LMArena Search Arena (style control) by LMArena (arena.ai) (blind human votes, Arena score (Bradley-Terry rating from pairwise human votes on search-grounded answers, style-controlled view)) · snapshot 13 Oct 2026Read from LMArena's official Hugging Face dataset lmarena-ai/leaderboard-dataset (search_style_control, latest split, category overall) because arena.ai blocks automated fetches. 42 entries, all vendor search/grounding APIs (OpenAI, Anthropic, Google, xAI, Alibaba, Baidu, Perplexity, Diffbot). Current versions listed: GPT-6.1 Sol, GPT-6 Astra, GPT-6 Luna, Claude Fable 5.1, Claude Opus 5.5, Gemini 3.1 Pro, Qwen3.8-Max, Perplexity Sonar Pro / Reasoning Pro. Not listed in current versions: Claude Sonnet 5.5, Gemini 3.8 Flash, Gemini 4 Argon, Grok 4.7; no open-weights frontier models (only diffbot-small-xl). The #1 entry is the older GPT-5.6 Sol. The style-controlled view is assumed to be the site default, as for the Text Arena.
- DeepResearch Bench (RACE, GPT-5.5 judge) by DeepResearch Bench team (USTC); leaderboard hosted by muset-ai (automated tests, RACE overall score (0-100; report quality judged by GPT-5.5 relative to reference reports on 100 research tasks), ranks tools) · snapshot 11 Oct 2026Official DeepResearch Bench leaderboard tab 'DRB Leaderboard' (RACE judge GPT-5.5, fact-check GPT-5.4-mini), the only one maintained since 1 June 2026; the older Gemini-2.5-Pro-judge tab (45 entries, incl. Tavily, Claude Research, Kimi-Researcher, Sonar) is frozen and not comparable. Read from data_gpt55/leaderboard.csv in the Hugging Face space (last commit 2026-10-11). 17 entries: mostly research-agent submissions; the consumer products (Gemini, OpenAI, Perplexity, Grok deep research) are the original 2025 DRB paper runs re-scored with the new judge, so they reflect the 2025 products. 100 PhD-level research tasks.
- Artificial Analysis Search Index (Search APIs) by Artificial Analysis (automated tests, Equal-weighted mean of DeepSearchQA F1, BrowseComp accuracy (hard 200-task subset) and AA-Omniscience accuracy (600 private questions), 0-100, with the same answer model (GPT-5.6 Luna, medium) and harness; only the Search API varies, ranks tools) · snapshot 19 Oct 2026Page states 'Latest data: Oct 19, 2026'; 29 Search API configurations from 14 providers plus a model-only baseline (33.37) and OpenAI Web Search (first-party tool, 74.4). Values read from the page's embedded data (the public table shows the top 12 rows, rounded). Best tracked rows: Exa 80.31, Perplexity Search 79.98, Parallel 74.75, Brave 74.6, You.com 74.07, Firecrawl 73.49, Linkup 68.25, Tavily 65.57. Untracked: Octen (77.06), Nimble, TinyFish, DeepSeek Search, Keenable. Measured dates per row range 2026-08-17 to 2026-10-19.