OpenAIReasoningReleased 5 November 2026
Auto Router pricing, context and benchmark
Auto is OpenRouter’s flagship model router, built for general-purpose usage.
2M
Input context
n/a
Output context
$-1000000
Official input
$-1000000
Official output
n/a
AA index
01 · Model Overview
Everything that matters, in one table
Context, pricing, cache, modalities and tooling, from the model registry and Artificial Analysis.
| Model | Auto Router |
| Model ID | openrouter/auto |
| Provider | OpenAI |
| Release date | 5 November 2026 |
| Status | Generally available |
| Input context | 2,000,000 tokens |
| Output context | Provider default |
| Official input pricing | $-1000000 per 1M tokens |
| Official output pricing | $-1000000 per 1M tokens |
| Cache read pricing | Not published |
| Market input pricing | $-1000000 per 1M (cheapest route) |
| Market output pricing | $-1000000 per 1M (cheapest route) |
| Input modalities | text · image · audio · file · video |
| Output modalities | text · image |
| Reasoning control | Not exposed |
| Tool support | Text generation only |
| Tokenizer | Router |
| Provider routes | 0 endpoints |
| Artificial Analysis index | Not published |
| Speed | Not published |
| Knowledge cutoff | Not publicly stated |
Input and output support
| Modality | Input | Output | Billed at |
|---|---|---|---|
| Text | ✓ yes | ✓ yes | $-1000000 in |
| Image | ✓ yes | ✓ yes | $-1000000 in |
| Audio | ✓ yes | no | $-1000000 in |
| Video | ✓ yes | no | $-1000000 in |
| File (PDF) | ✓ yes | no | $-1000000 in |
02 · Overview
What is Auto Router?
Auto is OpenRouter’s flagship model router, built for general-purpose usage.
It adapts to each request, choosing cost-optimal models and adjusting reasoning effort.
It balances task difficulty, benchmark results, live prices,...
Auto Router carries a 2M token window, uses the Router tokenizer and is served by OpenAI. On Hoodgen it sits in the Reasoning tier of the model menu next to its siblings, so you can switch mid conversation without losing the thread.
03 · Release
Release and what changed from the previous version
Released5 November 2026
| Property | GPT-6.1 Terra Pro | Auto Router | Change |
|---|---|---|---|
| Released | Oct 2026 | 2026 | Newer release |
| Context | 1.05M | 2M | Changed |
| Max output | 128K | n/a | Changed |
| Input price | $1 | $-1000000 | Cheaper |
| Output price | $5 | $-1000000 | Cheaper |
| Input modalities | file, image, text | text, image, audio, file, video | Unchanged |
| AA index | n/a | n/a | Newer benchmark run |
04 · Capabilities
Features and capabilities
◉
Vision
Screenshots, charts and photographed documents are read at the text token rate.
▤
Files and PDFs
Documents go in as files rather than pasted text, keeping layout and tables intact.
♪
Audio and video
Calls, meetings and screen recordings can be summarised in one pass.
07 · Use cases
What can you do with Auto Router?
Debugging and root cause
Multi file failures where the model has to hold a causal chain before answering.
Architecture and planning
Design docs, migration plans and trade off analysis over long context.
Data analysis
Spreadsheets and logs read in one pass, then summarised with the numbers quoted back.
Agentic coding
Repo wide changes that need plan, edit and verify loops.
09 · Pricing
Auto Router pricing
Official pricing
List price
$-1000000 / 1M in
$-1000000 / 1M out
- 2M context
- text, image, audio, file, video input
Cheapest route
$-1000000 / 1M in
$-1000000 / 1M out
- 0 routes on OpenRouter
- What Hoodgen routes to first
- Same model, lower bill
Market pricing, every route
| Provider | Tier | Input | Output | Cache read | Uptime 24h |
|---|
API pricing and cost calculator
| Rate | Per call | Total | Credits |
|---|---|---|---|
| Cheapest route | $-21500.0000 | $-10750000.00 | 1 |
| List price | $-21500.0000 | $-10750000.00 | 1 |
10 · Developers
API and developer information
| Model ID | openrouter/auto |
| Endpoint | https://openrouter.ai/api/v1/chat/completions |
| Parameters | prompt and max_tokens |
| Streaming | Yes, server sent events |
| Modality string | text+image+file+audio+video->text+image |
| Max prompt tokens | 2,000,000 |
| Max completion tokens | provider default |
curl https://openrouter.ai/api/v1/chat/completions \
-H "Authorization: Bearer $OPENROUTER_API_KEY" \
-H "Content-Type: application/json" \
-d '{
"model": "openrouter/auto",
"messages": [{ "role": "user", "content": "Summarise this document." }],
"max_tokens": 1024
}'11 · Limitations
Model limitations
| Output cap | Provider default tokens per request. Long deliverables have to be chunked. |
| Benchmarks not published | Artificial Analysis does not publish an Intelligence Index for this release, so no benchmark score is claimed here. |
| Knowledge cutoff | The provider does not state a fixed cutoff for every release. Verify very recent events against search. |
12 · Comparison
Auto Router vs other OpenAI models
| Model | Context | Input /1M | Output /1M | AA index | Released |
|---|---|---|---|---|---|
| Auto Router | 2M | $-1000000 | $-1000000 | n/a | 2026 |
| GPT-5.5 Pro | 1.05M | $30 | $180 | n/a | 2026 |
| GPT-5.4 Pro | 1.05M | $30 | $180 | n/a | 2026 |
| GPT-5.2 Pro | 400K | $21 | $168 | n/a | 2025 |
| o3 Pro | 200K | $20 | $80 | n/a | 2025 |
| GPT-5 Pro | 400K | $15 | $120 | n/a | 2025 |
13 · Privacy
Privacy and data policy
- On Hoodgen, prompts and attachments answer that request and stay in your conversation history so you can reopen it. They are not used to train models.
- Requests route through OpenRouter to OpenAI and are covered by that provider's API terms.
- Do not paste secrets or personal data you would not send to any hosted model.
14 · FAQ
Auto Router questions, answered
Auto Router is a reasoning model from OpenAI, released 5 November 2026. Auto is OpenRouter’s flagship model router, built for general-purpose usage.
✦
Start chatting with Auto Router
Free to try on Hoodgen AI, with a live credit estimate before every send. No API key, no setup.