{"type":"post","id":"humans-released-ampersand-v0-1-a-collaborator-model-2e438d","slug":"humans-released-ampersand-v0-1-a-collaborator-model-2e438d","title":"Humans& released Ampersand v0.1 , a collaborator model trained on long-horizon multi-user simulations rather than verifiable or preference rewards.","description":"**Thesis:** A collaborator model is being defined by progress across people and time, not merely by completion of an individual task.","retrieval_nugget":"**Thesis:** A collaborator model is being defined by progress across people and time, not merely by completion of an individual task.","published_at":"2026-10-21","updated_at":"2026-10-21","record_date":"2026-10-21","date_kind":"published_at","topics":["models","multi-agent","long-running-agents"],"source_urls":["https://ampersand.humansand.ai/blog"],"schema_version":"newruntime-agent-readable-v0.2","stable_id":"post:humans-released-ampersand-v0-1-a-collaborator-model-2e438d","status":"published","visuals":[],"editorial_provenance":{"schema_version":"newruntime-editorial-copy-v1","content_status":"source_grounded_final","final_copy_sha256":"sha256:db7e0ea01028671245cbfe2c0ea6beb920d72a8d8b95841f7e808cd03411882a","reviewed_at":"2026-10-21T05:01:44.354Z","source_evidence_count":1,"verified_claim_count":3,"site_analysis_schema_version":"newruntime-site-analysis-v1","site_object_kind":"field_note","observed_fact_count":3,"implication_count":2,"watch_condition_count":1,"related_record_count":0},"analysis":{"schema_version":"newruntime-site-analysis-v1","object_kind":"field_note","thesis":"A collaborator model is being defined by progress across people and time, not merely by completion of an individual task.","observed_facts":[{"text":"Humans& released Ampersand v0.1 through its Agents API for developers building collaborative tools and apps.","source_urls":["https://ampersand.humansand.ai/blog"]},{"text":"The company says it evaluates simulated groups with evolving goals over episodes up to months of simulated time, scoring goal progress minus interaction costs.","source_urls":["https://ampersand.humansand.ai/blog"]},{"text":"Humans& reports 59.1% on Collaborative Intelligence at high effort and 39.0% cooperative success on CooperBench, while noting higher interaction costs including unwanted coaching.","source_urls":["https://ampersand.humansand.ai/blog"]}],"mechanism":"The model is trained and evaluated in simulated multi-user settings where goals evolve; reported value combines progress toward long-term goals with penalties for interactions that conflict with preferences.","why_now":"The release makes this training and evaluation approach available to developers through an API, so it can now be tested in collaborative applications.","implications":["Teams should evaluate collective progress and intervention costs together, rather than equating proactivity with collaboration.","Independent validation and deployment evidence are needed to establish whether benchmark gains translate into useful collaboration."],"evidence_boundary":"All benchmark results and comparisons are reported by Humans&; the supplied source does not establish independent replication or real-world deployment outcomes.","watch_conditions":["Watch for independent evaluations or deployment results that test whether collaboration gains persist while reducing unwanted coaching across varied groups and tasks."],"related_records":[],"new_branch_reason":"No prior New Runtime record is supplied for this specific release; it merits a distinct record because it combines a collaborator-model product launch with a longitudinal, multi-user evaluation framing."},"editor":{"role":"editor","name":"Andrey Reshetnikov","profile":"https://newruntime.com/owner-profile.md","profile_json":"https://newruntime.com/owner-profile.json","same_as":["https://www.linkedin.com/in/reshetnikov1/","https://t.me/lapetuse"]},"routes":{"html":"https://newruntime.com/posts/humans-released-ampersand-v0-1-a-collaborator-model-2e438d/","markdown":"https://newruntime.com/posts/humans-released-ampersand-v0-1-a-collaborator-model-2e438d.md","json":"https://newruntime.com/posts/humans-released-ampersand-v0-1-a-collaborator-model-2e438d.json"},"related_shifts":["fixed-teams-to-executable-mandates"],"next_reads":[{"type":"topic","path":"/topics/models/","url":"https://newruntime.com/topics/models/","title":"Models","reason":"Explore the models topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/models.md","json_url":"https://newruntime.com/topics/models.json"},{"type":"topic","path":"/topics/multi-agent/","url":"https://newruntime.com/topics/multi-agent/","title":"Multi Agent","reason":"Explore the multi-agent topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/multi-agent.md","json_url":"https://newruntime.com/topics/multi-agent.json"},{"type":"topic","path":"/topics/long-running-agents/","url":"https://newruntime.com/topics/long-running-agents/","title":"Long Running Agents","reason":"Explore the long-running-agents topic hub.","media_type":"text/html","markdown_url":"https://newruntime.com/topics/long-running-agents.md","json_url":"https://newruntime.com/topics/long-running-agents.json"},{"type":"collection","path":"/posts/","url":"https://newruntime.com/posts/","title":"Field Notes","reason":"Open the latest editorial analysis.","media_type":"text/html","json_url":"https://newruntime.com/posts.json"},{"type":"collection","path":"/source-ledger.json","url":"https://newruntime.com/source-ledger.json","title":"Source Ledger","reason":"Inspect the public source evidence graph.","media_type":"application/json"}]}