One-time trialPartially privateHigh confidence

Baidu Qianfan

A finite allowance for new accounts; it does not recur.

Visit provider
Free accessOne-time trial
Payment cardNo
AccountRequired
Sources7 first-party links
API endpointhttps://qianfan.baidubce.com/v2

Models mentioned

The offer covers a dynamic catalog, provider-selected route, or model class without stable model IDs in this snapshot.

Equivalent paid value

CN¥20.00 once
Daily spreadNot available
Weekly spreadNot available
Monthly spreadNot available
One-timeCN¥20.00

How this was valued: Face value of the platform-wide new-user voucher; the unresolved 1,000,000-plus-token claim is excluded.

Limits and terms

Voucher Cny
20
Validity
one month
Recurrence
No
Scope
qianfan platform wide

What happens to your prompts?

Partially privateReviewed

Terms limit ordinary user-data use to service delivery but permit compliance review and publish neither a fixed inference-content TTL nor an express plan-wide no-training commitment; third-party routes may differ.

Plan Scope
Qianfan inference and related platform services; third-party models may add terms.
Prompt Retention
Inputs, outputs, and uploaded data are user data for service use, but no fixed inference-content TTL is published.
Response Retention
Same as prompts; no fixed TTL was found.
Ordinary Logging
No request-content logging duration is published.
Model Training
No plan-wide no-training guarantee is stated.
Product Improvement
No precise inference-content improvement scope or opt-out is published.
Human Or Operator Access
Baidu may manually or technically review inputs and outputs for compliance and content governance.
Subprocessors And Routing
Affiliates, service partners, and third-party model providers may participate; international handling may differ.
Deletion Controls
Account/privacy rights exist, but inference-specific deletion controls and SLA are not documented.

Governing documents

Eligibility

Account Required
Yes
Real Name Verification Required
Yes
Payment Method Required
not publicly documented

Primary sources

7

Before you build with Baidu Qianfan

Read the classification narrowly

This record has current first-party evidence for some zero-cost hosted inference. The label describes the bounded offer supported by evidence on 2026-09-19; it does not guarantee permanence, production suitability, uptime, latency, model quality, or access from every region.

Resolve the live model route

No stable model ID is recorded. The offer may use a dynamic catalog, a provider-selected route, or a model class, so resolve the current machine-readable ID before writing a fixed production configuration. The recorded base endpoint is https://qianfan.baidubce.com/v2, but the provider's current API reference remains authoritative for paths, authentication, and request shape.

Confirm account and billing boundaries

An account is required, so public catalog evidence cannot by itself prove the limits, balance, or billing behavior attached to your workspace. The reviewed evidence explicitly says no payment card is required. Re-check the signup flow because eligibility and billing controls can change after the snapshot. The equivalent paid value shown here prices a documented allowance where possible; it is not cash, guaranteed savings, or protection from overage.

Re-read the prompt policy for your plan

This record classifies the reviewed handling as “Partially private”: Terms limit ordinary user-data use to service delivery but permit compliance review and publish neither a fixed inference-content TTL nor an express plan-wide no-training commitment; third-party routes may differ. Provider policies can distinguish free, paid, enterprise, opted-in, and feature-specific traffic, so verify the governing terms for the exact account and route that will receive your data.

Follow the evidence, then re-check it

The record links 7 first-party sources covering the offer, catalog, limits, pricing, terms, privacy, or adoption evidence available to the audit. Prefer the newest governing document or live catalog when sources disagree, and submit a correction when a provider changes a material term.

Match the quota to the workload shape

Translate the published allowance into the traffic pattern you actually expect instead of comparing headline totals alone. A daily token pool can look generous while a low requests-per-minute or concurrency ceiling blocks interactive bursts; a high request limit can still fail a long-context job when input, output, or per-request tokens are capped. Separate prompt tokens from generated tokens, include retries and tool calls, and test the largest realistic payload. If the provider documents more than one limit window, the tightest window at your peak load is the practical ceiling. Research, experimental, and community access can also carry eligibility or fair-use constraints that cannot be modeled as a simple number.

Plan fallback without changing the rules

A fallback should preserve more than API syntax. Confirm that the substitute route supports the required modality, context length, streaming behavior, structured output, tools, and safety controls, then compare its prompt-retention and training terms. An OpenAI-compatible request shape does not make providers operationally or contractually equivalent. Decide which errors may trigger a retry, cap retry storms, and prevent an exhausted free route from silently switching to a billable model. If deterministic output matters, record the model revision and sampling settings; rotating aliases and free-model pools can change behavior even when the endpoint remains available.

Monitor the offer as a dependency

Capture the model ID, response model field, rate-limit headers, usage fields, latency, HTTP status, and any provider request identifier for each test. Watch for authorization failures, quota exhaustion, catalog removal, policy revisions, and dashboard balance changes as separate failure modes. Re-check the provider’s live catalog and governing pages on a schedule proportionate to the workload’s importance, and keep the dated sources that supported your decision. Free capacity is especially suitable for prototypes, evaluations, fallbacks, and bounded workloads when the application can tolerate change; a production dependency still needs observability, an exit path, and an owner responsible for re-verification.

Test one complete request before scaling

Start with the smallest permitted request using the exact credential, model ID, endpoint, and account type you intend to deploy. Record the HTTP status, response headers, usage fields, latency, and any dashboard balance change. Then exercise the failure path: an invalid model, an exhausted quota, or a rate-limit response should fail clearly without silently switching to a paid route. If the provider supports streaming or tool calls, validate those features separately because a free model can expose a narrower capability set than its paid counterpart. Keep a budget ceiling outside the application whenever billing is possible, and avoid sending sensitive data until the observed route matches the reviewed data agreement.