DeepSeek-R1 is producing 400 errors when attempting to interact with it via PM, leading to a job exception. Backtrace Message (3 copies reported) DiscourseAi::Completions::Endpoints::OpenAi: status: 400 - body: {"error":{"message":"deepseek-reasoner does not support successive user or assistant messages (messages[1] and messages[2] in your input). You should interleave the user/assistant messages in the message sequence.","type":"invalid_request_error","param":null,"code":"invalid_request_error"}} Backtrace /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:134:in `block in error' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `block in dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `each' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:231:in `dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/activesupport-7.2.2.1/lib/active_support/broadcast_logger.rb:134:in `error' /var/www/discourse/plugins/discourse-ai/lib/completions/endpoints/base.rb:119:in `block (2 levels) in perform_completion!' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/net-http-0.6.0/lib/net/http.rb:2433:in `block in transport_request' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/net-http-0.6.0/lib/net/http/response.rb:320:in `reading_body' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/net-http-0.6.0/lib/net/http.rb:2430:in `transport_request' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/net-http-0.6.0/lib/net/http.rb:2384:in `request' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/patches/net_patches.rb:19:in `block in request_with_mini_profiler' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/mini_profiler/profiling_methods.rb:50:in `step' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rack-mini-profiler-3.3.1/lib/patches/net_patches.rb:18:in `request_with_mini_profiler' /var/www/discourse/plugins/discourse-ai/lib/completions/endpoints/base.rb:117:in `block in perform_completion!' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/net-http-0.6.0/lib/net/http.rb:1632:in `start' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/net-http-0.6.0/lib/net/http.rb:1070:in `start' /var/www/discourse/plugins/discourse-ai/lib/completions/endpoints/base.rb:100:in `perform_completion!' /var/www/discourse/plugins/discourse-ai/lib/completions/endpoints/open_ai.rb:40:in `perform_completion!' /var/www/discourse/plugins/discourse-ai/lib/completions/llm.rb:279:in `generate' /var/www/discourse/plugins/discourse-ai/lib/ai_bot/bot.rb:115:in `reply' /var/www/discourse/plugins/discourse-ai/lib/ai_bot/playground.rb:477:in `reply_to' /var/www/discourse/plugins/discourse-ai/app/jobs/regular/create_ai_reply.rb:18:in `execute' /var/www/discourse/app/jobs/base.rb:316:in `block (2 levels) in perform' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rails_multisite-6.1.0/lib/rails_multisite/connection_management/null_instance.rb:49:in `with_connection' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/rails_multisite-6.1.0/lib/rails_multisite/connection_management.rb:21:in `with_connection' /var/www/discourse/app/jobs/base.rb:303:in `block in perform' /var/www/discourse/app/jobs/base.rb:299:in `each' /var/www/discourse/app/jobs/base.rb:299:in `perform' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:202:in `execute_job' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:170:in `block (2 levels) in process' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/middleware/chain.rb:177:in `block in invoke' /var/www/discourse/lib/sidekiq/pausable.rb:132:in `call' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/middleware/chain.rb:179:in `block in invoke' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/middleware/chain.rb:182:in `invoke' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:169:in `block in process' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:136:in `block (6 levels) in dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/job_retry.rb:113:in `local' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:135:in `block (5 levels) in dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq.rb:44:in `block in ' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:131:in `block (4 levels) in dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:263:in `stats' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:126:in `block (3 levels) in dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/job_logger.rb:13:in `call' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:125:in `block (2 levels) in dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/job_retry.rb:80:in `global' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:124:in `block in dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/job_logger.rb:39:in `prepare' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:123:in `dispatch' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:168:in `process' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:78:in `process_one' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/processor.rb:68:in `run' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/component.rb:8:in `watchdog' /var/www/discourse/vendor/bundle/ruby/3.3.0/gems/sidekiq-6.5.12/lib/sidekiq/component.rb:17:in `block in safe_thread' This GitHub thread seems to present a possible solution. https://github.com/deepseek-ai/DeepSeek-R1/issues/21

Is this after the first response?

It was actually working the other day. But now I get this error, before any response. [Screenshot 2025-01-28 at 16.41.02] Sometimes “Error details” shows this, sometimes it just gives that 400 error

Is this via their official API or are you self-hosting the model?

official API, sorry should’ve made that clear!

I am also getting errors using the API. Seems like maybe it is timing out. Could be the model is under heavy usage now. Not sure.

I also just now saw on their site some banner stating that their site is under heavy attack. So might just be a waiting game I guess. [Screenshot 2025-01-28 at 19.29.16]

Reasoning Models 400 error

Product Support

Falco (Falco) January 28, 2025, 6:26pm 7

There are many reports in the AI community that the DeepSeek API is mostly down after the recent boon in coverage in western mainstream media.

Topic		Replies	Views
DeepSeek-R1 randomly producing "Job exception: undefined method `finish' for nil" error Bug ai , ai-bot	3	381	February 3, 2025
DeepSeek provider support? What to do when model provider isn't in "Provider" list? Product Support ai	12	1363	February 3, 2025
Ai推理模式报错 Product Support ai	9	235	September 16, 2026
我想调研一下，大家discourse ai 插件都用的什么大模型？ UX ai	4	186	September 21, 2026
Discourse 接入 DeepSeek 官方开放平台后出现无响应问题 Product Support ai	5	298	July 26, 2026

Reasoning Models 400 error

Related topics