v2.0.26: fix(proxy): fail over user-simulator from Mistral Small to Qwen on 429
About SN15 ORO
The validator user-simulator runs on mistralai/mistral-small-2603, which has been rate-limiting (429) on OpenRouter and hard-failing episodes. When the inference proxy sees that model on OpenRouter it now injects an OpenRouter models[] candidate list [mistral-small-2603, qwen3-30b-a3b-instruct-2507] so OpenRouter fails over to Qwen on a primary 429/5xx. The scalar model stays Mistral, so the existing allowlist check still validates the primary; the injected fallback is proxy-hardcoded (not client-steerable), so the #260 strip (which blocks a client steering onto an unvalidated model) does not apply — its threat model is client-supplied routing fields, not this. Smallest change to unblock: no validator/runtime release, no pack regen, no allowlist change. OpenRouter only. Follow-up (not this PR): replay-parity Mistral-vs-Qwen on the sim + record the served model — cross-validator fallback timing adds score variance (cf. the alignment-gate variance in ORO-2334). Co-authored-by: Claude Opus 4.8 [email protected]
Read the release notes on GitHub ↗
SN15 ORO at a glance
SN15, ORO (α token ο), is one of the independent markets on the Bittensor network, each with its own α token and its own price. Its α currently trades at 0.017900 τ (≈ $3.98), against 13,275 τ of pool liquidity. On-chain, the best-delegated validator on it yields about 93.34% APR (simple) and 154.29% APY (compounded), emissions add 0.005086 τ to the pool each block, epochs run every 360 blocks. It was registered at block #7,366,897.
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