[V2] Bedrock: bare Sonnet 5.5 / Haiku 5.5 (and Llama 4, Palmyra) IDs are offered but only work as inference profiles #54485

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1. opencode-agent commented on Oct 11, 2026

   

   opencode-agentBot

   on Oct 11, 2026 – with OpenCode Agent

   Contributor

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   Thanks for the detailed report and the probe table. I could confirm the OpenCode side on dev @ e31136b, which is also the latest dev.

   I ran the current models.dev catalog through ModelsDevPlugin (the test is below):

   • anthropic.claude-sonnet-5-5, anthropic.claude-haiku-5-5, meta.llama4-maverick-17b-instruct-v1:0, meta.llama4-scout-17b-instruct-v1:0, writer.palmyra-x4-v1:0 and writer.palmyra-x5-v1:0 are all offered for amazon-bedrock.
   • They use the Converse package and keep the bare model ID, because none of them is in BEDROCK_PROFILE_ONLY_IDS.
   • As expected, us.anthropic.claude-sonnet-5-5 and bare anthropic.claude-opus-5-5 stay available, and anthropic.claude-sonnet-5 (already on the list) is hidden.

   The sandbox has no AWS credentials, so I couldn't trigger the Bedrock ValidationException myself. That part relies on your probes.

   Until this changes, the us./eu. profile IDs work as a workaround.

   Related: #48078 added the list. #52046 deals with Sonnet 5.5 Converse request bodies, which is a separate problem.

   To run the test: copy it into packages/core/test/plugin/, download https://models.dev/api.json, then run MODELS_DEV_JSON=<path> bun test test/plugin/repro-54485.test.ts from packages/core.

   Reproduction script (repro-54485.test.ts)

   // Repro for anomalyco/opencode#54485: bare Bedrock IDs that only work as inference
   // profiles are still materialized by ModelsDevPlugin from the live models.dev catalog.
   // Needs MODELS_DEV_JSON=<path to https://models.dev/api.json download>.
   import { describe, expect } from "bun:test"
   import { Effect, Layer } from "effect"
   import { Integration } from "@opencode/core/integration"
   import { AppNodeBuilder } from "@opencode/core/effect/app-node-builder"
   import { LayerNode } from "@opencode/util/effect/layer-node"
   import { Bus } from "@opencode/core/bus"
   import { Location } from "@opencode/core/location"
   import { Model } from "@opencode/core/model"
   import { ModelsDev } from "@opencode/core/models-dev"
   import { ModelsDevPlugin } from "@opencode/core/plugin/models-dev"
   import { Provider } from "@opencode/core/provider"
   import { AbsolutePath } from "@opencode/core/schema"
   import { location } from "../fixture/location"
   import { testEffect } from "../lib/effect"
   import { providerHost, host, integrationHost } from "./host"
   
   const layer = AppNodeBuilder.build(LayerNode.group([Provider.node, Model.node, Integration.node, Bus.node]), [
     Location.node.replace(Layer.succeed(Location.Service, Location.Service.of(location({ directory: AbsolutePath.make(import.meta.dir) })))),
   ])
   const it = testEffect(layer)
   const catalog = AppNodeBuilder.build(ModelsDev.node, [
     ModelsDev.node.replace(ModelsDev.configured({ file: process.env.MODELS_DEV_JSON!, fetch: false })),
   ])
   
   const ids = [
     "anthropic.claude-sonnet-5-5",
     "anthropic.claude-haiku-5-5",
     "meta.llama4-maverick-17b-instruct-v1:0",
     "meta.llama4-scout-17b-instruct-v1:0",
     "writer.palmyra-x4-v1:0",
     "writer.palmyra-x5-v1:0",
     // controls
     "us.anthropic.claude-sonnet-5-5",
     "anthropic.claude-opus-5-5",
     "anthropic.claude-sonnet-5",
   ]
   
   describe("#54485", () => {
     it.effect("bare profile-only Bedrock IDs", () =>
       Effect.gen(function* () {
         const providers = yield* Provider.Service
         const models = yield* Model.Service
         const integrations = yield* Integration.Service
         yield* ModelsDevPlugin.effect(host({ provider: providerHost(providers), integration: integrationHost(integrations) }))
         yield* providers.transform((editor) => {
           for (const record of editor.list()) editor.update(record.provider.id, (p) => { p.activation = "enabled" })
         })
         const result: Record<string, string> = {}
         for (const id of ids) {
           const m = yield* models.get(Provider.ID.make("amazon-bedrock"), Model.ID.make(id))
           result[id] = m ? `OFFERED package=${m.package} modelID=${m.modelID ?? m.id}` : "hidden"
         }
         console.log(JSON.stringify(result, null, 2))
         for (const id of ids.slice(0, 6)) expect(result[id]).toBe("hidden")
       }).pipe(Effect.provide(catalog)),
     )
   })

   Run it: bun repro-54485.test.ts
2. opencode-agent

   added

   reproduced

   on Oct 11, 2026
3. rekram1-node

   closed this as completedin #54486on Oct 16, 2026