qwen2-1.5b-instruct
A text-only Qwen2 Instruct route with a 32,000-token input limit and sampling/output controls.
About the model
This description covers the model’s capabilities. Available in Ailoot inputs, outputs and options are listed for the selected method below.
qwen2-1.5b-instruct is a text-to-text instruction route with a maximum listed text input of 32,000 tokens. A concrete task is extracting a few named fields from a short support message, returning an empty value for fields absent from the source. This bounded task makes the requested result easy to inspect without assuming a size-based quality guarantee.
The /v1/chat/completions method exposes max_tokens or max_completion_tokens, temperature, top_p, seed and stop alongside optional streaming. Its service_tier values are empty, auto or default; no numeric output ceiling is published here. The 1.5B Instruct label identifies the selection, but the record does not establish a language-specific quality claim or image-input capability.
Ailoot Ultra · Chat Completions POST /v1/chat/completions qwen2-1.5b-instruct
qwen2-1.5b-instructOverview
A text-only Qwen2 Instruct route with a 32,000-token input limit and sampling/output controls.
- Accepted inputs
- Text
- Results
- Text
Available in Ailoot · inputs & methods
Ailoot Ultra · Chat Completions POST /v1/chat/completions
- Input types
text- Output types
text- Context
- 32,000 tokens
- Output format
- JSON or supported SSE
| Field | Type | Requirement | Values & limits | Default |
|---|---|---|---|---|
Fieldmodel | Typestring | RequirementRequired | Values & limits qwen2-1.5b-instruct | Default— |
Fieldmessages | Typearray | RequirementRequired | Values & limits | Default— |
Fieldstream | Typeboolean | RequirementOptional | Values & limits | Defaultfalse |
Fieldmax_tokens | Typeinteger | RequirementOptional | Values & limits Minimum: 1 | Default— |
Fieldmax_completion_tokens | Typeinteger | RequirementOptional | Values & limits Minimum: 1 | Default— |
Fieldn | Typeinteger | RequirementOptional | Values & limits Minimum: 1 | Default— |
Fieldtemperature | Typenumber | RequirementOptional | Values & limits | Default— |
Fieldtop_p | Typenumber | RequirementOptional | Values & limits | Default— |
Fieldseed | Typeinteger | RequirementOptional | Values & limits | Default— |
Fieldstop | Type | RequirementOptional | Values & limits | Default— |
Fieldfrequency_penalty | Typenumber | RequirementOptional | Values & limits | Default— |
Fieldpresence_penalty | Typenumber | RequirementOptional | Values & limits | Default— |
Fielduser | Typestring | RequirementOptional | Values & limits | Default— |
Fieldtools | Typearray | RequirementOptional | Values & limits | Default— |
Fieldservice_tier | Typestring | RequirementOptional | Values & limits , auto, default | Default— |
Fieldmodalities | Typearray | RequirementOptional | Values & limits | Default— |
Method parameters and lifecycle
| Parameter | Contract |
|---|---|
Parametercontent_type | Contractapplication/json |
Parameterrequired | Contractmodel, messages |
Parameteroptional | Contractstream, max_tokens, max_completion_tokens, n, temperature, top_p, seed, stop, frequency_penalty, presence_penalty, user, tools, service_tier, modalities |
Parametermaterial_types | Contracttext |
Parameterconditions | ContractUse text input and text output. Explicit cache, hosted tools and media are unavailable. Standard function tools remain a protocol feature and run in the client. |
Lifecycle: synchronous_json_or_sse
Pricing
Tariff references do not add request options. Supported parameters are listed for the selected method.
- Fast mode
- Standard rate When fast mode is selected
- Flex mode
- Standard rate When flex mode is selected
- Maximum reasoning effort
- Standard rate When maximum reasoning effort uses the default adjustment
- Explicit cache pricing
- Not enabled When explicit cache is requested
- Text-only zero rates
- Cache, tools and media follow their separately listed pricing conditions. For text-only input and output
Ailoot rates
Prices by configuration
| Configuration | Rate schedule | Charge |
|---|---|---|
| ConfigurationBase token rates | Rate scheduleBase rate | Charge Input · Input tokens $0 / 1K tokens Output · Output tokens $0 / 1K tokens Input · Cache read $0 / 1K tokens Input · Cache write $0 / 1K tokens Input · Cache write, 1 hour — / 1K tokens |
Ailoot reserves an estimated amount before a request. After the result, it settles the final charge from measured usage. Streaming settlement uses the final usage record. How reservation and settlement work →
Example requests
Ailoot Ultra · Chat Completions
set -eu
: "${AILOOT_API_KEY:?Set your Ailoot API key}"
export AILOOT_API_KEY
python3 - <<'PY_REQUEST'
import json,os
from pathlib import Path
p=json.loads('{"model": "qwen2-1.5b-instruct", "messages": [{"role": "user", "content": "Summarize the supplied text in three concise points."}], "stream": false}')
Path("request.json").write_text(json.dumps(p,ensure_ascii=False))
PY_REQUEST
curl --fail-with-body --silent --show-error https://api.ailoot.ai/v1/chat/completions \
-H "Authorization: Bearer $AILOOT_API_KEY" -H 'Content-Type: application/json' \
--data-binary @request.json -D response-headers.txt -o result.json
# Submit once. Retain the complete result, original identifiers and every response header.
Receive and save results
Ailoot Ultra · Chat Completions
JSON or supported SSE
Keep all completed results
Keep every complete returned response, file and content part.
Retain the complete response, all actual results, original identifiers, usage and response headers.
If the original response needs checking
Preserve the original response, headers and X-Client-Request-ID. An uncertain outcome does not authorize another creation.
Aliases
Model aliases
Ailoot Ultra qwen2-1.5b-instruct
Method path aliases
Use the method paths shown above.
Related caller IDs
FAQ · qwen2-1.5b-instruct
- What inputs and results are available?
POST /v1/chat/completions·qwen2-1.5b-instruct:text→text- Which fields does the request use?
POST /v1/chat/completions·qwen2-1.5b-instruct:model,messages,stream,max_tokens,max_completion_tokens,n,temperature,top_p,seed,stop,frequency_penalty,presence_penalty,user,tools,service_tier,modalities- What limits apply?
POST /v1/chat/completions·qwen2-1.5b-instruct:ctx:32000;max_tokens.minimum:1;max_completion_tokens.minimum:1;n.minimum:1