Aion-2.0
by Aion LabsChat
Reasoning model for deliberate analysis, multi-step problem solving, and tool use
- Context
- 131K tokens
- Max output
- 32,768 tokens
- Released
- 2026-02-23
- Weights
- Closed
aion-labs/aion-2-0 · also seen as aion-labs/aion-2.0-20260223
Specifications
Full facts as recorded, incl. what is unknown.
- Released
- 2026-02-23
- Weights
- Closed
- Input
- Text
- Output
- Text
- Context window
- 131,072 max across endpoints
- Max output
- 32,768
- Providers
- 1 + 3 gateways, not counted as providers
- Epoch Capabilities Index
- not evaluated
- Direct price range
- $0.80 in · $1.60 out per 1M tokens · from its one provider
More details
- Last updated
- 2026-02-23
- Knowledge cutoff
Capabilities
Across all endpoints: supported if any endpoint supports it.
- Tool calling
- Parallel toolsunknown
- Structured output
- Reasoning
- Image input
- PDF input
- Audio input
- Audio outputunknown
- Video input
- Prompt caching
- Web searchunknown
- Computer useunknown
- System messagesunknown
- Assistant prefillunknown
- Temperature
- Streamingunknown
- Attachments
Endpoints
One row per provider and variant; gateways are listed separately.
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Price history
No change since 19 Oct 2026. The cheapest direct price has been $0.80 in / $1.60 out per 1M tokens at AionLabs on every data refresh since then.
Tracked from 19 Oct 2026. Headline-eligible direct prices only, so a price the sanity check flags never draws a spike. Series as JSON
Cost calculator
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Similarly priced models
Blended rate per 1M tokens, each at its own cheapest provider (10M input : 2M output mix).
| Model | Blended/1M | In/1M | Out/1M | Context | vs Aion-2.0 |
|---|---|---|---|---|---|
| Aion-RP 1.0 (8B)Aion Labs | $0.933 | $0.80 | $1.60 | 32.8K | +0% |
| Kimi K2 0905 PreviewMoonshot AI | $0.948 | $0.632 | $2.53 | 262K | +2% |
| Dola Seed 2.0 CodeByteDance Seed | $0.917 | $0.50 | $3.00 | 131K | −2% cheaper |
| Seed 2.0 ProByteDance Seed | $0.917 | $0.50 | $3.00 | 131K | −2% cheaper |
| Seed 2.0 Code Preview (260328)ByteDance Seed | $0.917 | $0.50 | $3.00 | 262K | −2% cheaper |
| Seed 2.0 Pro (260328)ByteDance Seed | $0.917 | $0.50 | $3.00 | 262K | −2% cheaper |
| ApexCallstack | $0.917 | $0.50 | $3.00 | 262K | −2% cheaper |
| Nano Banana 2Google | $0.917 | $0.50 | $3.00 | 131K | −2% cheaper |
More from Aion Labs
Newest Aion Labs models in the catalogue. All Aion Labs models
| Model | Released | Context | Listed price |
|---|---|---|---|
| Aion 3.5 | 2026-09-23 | 262K | from $3.00 |
| Aion 3.5 Mini | 2026-09-23 | 262K | from $0.70 |
| Aion 3.0 | 2026-07-07 | 131K | from $3.00 |
| Aion 3.0 Mini | 2026-07-07 | 131K | from $0.70 |
| Aion-RP 1.0 (8B) | 2025-02-04 | 32.8K | from $0.80 |