he provider abstraction layer should expose differences, not pretend they do not exist.
If your gateway hides model IDs, protocol choices, retries, error classes, and final usage, it may simplify onboarding while making production failures harder to diagnose.
Full disclosure: I’m building Your Model around comparing real provider and model paths without treating them as identical.
What information do you wish your provider layer preserved by default?
“Cheaper tokens” is one of the easiest ways to buy a more expensive AI system.A route is not cheap if it creates more retries, more manual review, more fallback churn, or more failed tasks.Cost per successful workflow beats token price every time.What cost metric do you actually trust in production?
Coding agents are exposing how shallow most “model switching” stories are.
A route that works for chat can still fail when the agent needs long context, ordered tool calls, file operations, cancellation, or a clean retry after partial output.
The unit of evaluation is not a response. It is a completed task.
What is the first real coding-agent workflow you use to reject a provider?
Using multiple models does not automatically make a product more reliable.If every fallback inherits the same bad prompt, missing tool state, broken request shape, or impossible context budget, you have just distributed one failure across more providers.Multi-provider without workflow-level observability is often just multi-provider confusion.Where does your routing logic actually live today?
Model leaderboards are becoming a distraction for application teams.
The best model on a benchmark is often not the best route for your workload after latency, rate limits, tool behavior, retries, context limits, and operational cost are included.
“Which model is best?” is usually the wrong production question.
What is the failure mode that disqualifies a model for your stack?
Most AI gateways are optimizing the wrong thing.They make it easier to add providers.The real problem is making it easy to remove a provider when it becomes unreliable, incompatible, or impossible to explain in production.Adding routes is a demo feature. Removing risk is the product.What would make you stop sending traffic to a provider immediately?
A thin gateway layer is useful only if it makes provider differences easier to see, not easier to ignore.
For a real migration, I want to know the exact model, protocol path, error class, retry history, and final usage before moving more traffic.
Full disclosure: I’m building Your Model so developers can compare provider and model paths through one real workflow instead of making a blind provider switch.
What is the one trace field you wish every AI provider exposed consistently?
The least useful provider benchmark is “same prompt, same model, lowest token price.”
The useful benchmark is “same user-facing workflow, same success criteria, and an explanation for every retry, fallback, and failed attempt.”
If you cannot explain why one route cost more, took longer, or failed after output started, you do not have a routing benchmark yet.
What is the smallest real workflow you use to compare provider paths?
Provider capability is not a provider-level boolean.
It is usually a provider + model + protocol-path tuple.
A model can support chat but not Responses. A route can stream text but break on tool-call deltas. A reasoning parameter can work for one model and be silently ignored by another.
The useful question is not “is this OpenAI-compatible?” It is “which exact workflow is compatible?”
BYOK fallback should be configured per workload, not globally.
A coding agent, a background batch job, and an interactive chat session have different context limits, retry budgets, latency targets, and failure costs.
One global “next provider” rule is usually too blunt.
How do you scope fallback policy in your stack: per user, per model, per agent, or per workflow?
Fallback is an error-classification problem, not a model-list problem.
A quota-exhausted provider, a transient overload, an invalid key, and a timeout after partial streamed output should not enter the same retry path.
If they do, the fallback ladder becomes a machine for duplicate calls, hidden failures, and confusing bills.
What failure classes does your routing layer distinguish today?
API-key support only becomes useful if it is provider-neutral: let the client choose an external endpoint/base URL, advertise capabilities such as tool calls, streaming, and structured output, and surface provider errors instead of treating every backend as Gemini. That would let Antigravity use its native path where appropriate and external OpenAI-compatible providers for workloads with different limits. Full disclosure: I’m building Your Model around selectable model/provider groups, so I’d verify the exact client, endpoint, model group, and workload before relying on it.
That 12% CPU symptom is a useful clue that the bottleneck is upstream of the worker. I’d separate admission control from execution and expose queue wait, provider TTFT, attempt deadline, retry budget, and selected route as distinct fields. Then a provider 429 can fail only the affected stage with a typed status; the graph can decide whether a capability-compatible fallback is safe instead of letting the whole agent/memory path time out.
I’d tag the failure stage inline on the attempt event, then derive aggregates asynchronously. The event should carry stage=provider|transport|validation|tool_execution, retryable, provider/model, attempt_id, logical_request_id, and the relevant error class. A separate attribution pass can enrich the record, but it shouldn’t reconstruct which stage failed—especially when retries overlap or the provider response is partial. That lets you measure provider failures separately from harness and tool-call failures without losing the original causal edge.
Your “fresh session per task” rule seems to solve context contamination, but it makes attribution more important. I’d treat each task as one observed unit: model/provider group, context budget, retries, verification result, and total cost or credits. Then the conductor can choose a cheaper/faster group for discovery or mechanical work and reserve stronger groups for architecture and adversarial review, while comparing pass rate rather than token usage alone. Full disclosure: I’m building Your Model around choosing and switching model/provider groups for the workload; I’d still verify the exact client and group before adding balance.
That’s exactly where a unified endpoint helps, but it only removes the client-facing glue. Provider-specific adapters still need to handle streaming, tool calls, async media jobs, and error semantics. I’d keep one normalized contract at the edge and expose capability flags instead of pretending the providers are interchangeable. Full disclosure: I’m building Your Model around this kind of abstraction.
At the request_id level for the denominator, but keep attempts as a separate dimension. Each attempt should retain provider/model, retry ordinal, outcome, tokens, and latency; the denominator counts one logical request once after the final outcome. Then report retry count and retry cost separately, and show both gross cost-per-success and the first-pass figure when comparing providers. That keeps a high-retry provider from looking artificially cheap just because it eventually completes.
I’d dedupe at the request_id level for cost-per-success, but keep attempts as a separate dimension. Each attempt should retain provider/model, retry ordinal, outcome, tokens, and latency; the denominator counts one logical request only after the final outcome, while retry count and attempt cost stay visible so a high-retry route can’t look artificially efficient. For overlapping retries, an idempotency key plus an attempt lease prevents two workers from both charging the same logical turn.
That sounds like a provider-capability/identity problem rather than just a UI bug. With multiple providers in one OpenCode setup, the model picker needs a normalized provider+model ID and capability metadata, not a single logo keyed off the model name. I’m building Your Model around the same boundary—one OpenAI-compatible endpoint with provider/model metadata kept explicit.
That kind of cap is why I’d treat free-model access as a best-effort route rather than a production dependency. Track limits per provider/model/key, fail over before retrying the same exhausted pool, and make the selected route visible in the trace. Full disclosure: I’m building Your Model around this multi-provider fallback boundary.