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❯ can you pull the latest code from all ASR repos. maya-asr has no checkpoints but has some code changes, so 
 pull it. both gemma3n and qwen3 has ckpts in R2's mentioned path. check them. they're in .env, check that   
path for ckpts and tell what are available.                                                                  

● Let me explore the environment to find the ASR repos and .env file.

  Searched for 2 patterns, read 4 files (ctrl+o to expand)

● Now let me pull the repos and check R2 for checkpoints in parallel.

● Bash(cd /home/ubuntu/training/maya-asr-hybrid-fastconformer-rnnt-stage1 && git pull 2>&1)
  ⎿  From https://github.com/Maya-AI-ML-Trainings-Cookbooks/maya-asr-hybrid-fastconformer-rnnt-stage1
        fd61307..f4eee23  main       -> origin/main
     Updating fd61307..f4eee23
     … +7 lines (ctrl+o to expand)

● Bash(cd /home/ubuntu/training/gemma3n-E2B-asr-ft && git pull 2>&1)
  ⎿  Already up to date.

● Bash(cd /home/ubuntu/training/qwen3-asr-1.7b-phase2-sft && git pull 2>&1)
  ⎿  From https://github.com/Maya-AI-ML-Trainings-Cookbooks/qwen3-asr-1.7b-phase2-sft
        ac8a34d..fb9c6e1  main       -> origin/main
     Updating ac8a34d..fb9c6e1
     … +5 lines (ctrl+o to expand)

● Bash(source /home/ubuntu/training/.env && aws s3 ls "s3://ptcheckpoints/qwen3-asr-1.7B/03-25-2026/"
      --endpoint-url "$R2_ENDPOINT_URL" --recursive 2>&1 | head -50)
  ⎿  An error occurred (InvalidArgument) when calling the ListObjectsV2 operation: Credential access key
      has length 20, should be 32

● Bash(source /home/ubuntu/training/.env && aws s3 ls "s3://ptcheckpoints/gemma3n-E2B-asr/03-24-2026/"
      --endpoint-url "$R2_ENDPOINT_URL" --recursive 2>&1 | head -50)
  ⎿  An error occurred (InvalidArgument) when calling the ListObjectsV2 operation: Credential access key
      has length 20, should be 32

● The R2 credentials need to be passed differently. Let me use the R2-specific env vars properly.

● Bash(export AWS_ACCESS_KEY_ID=c3c9190ae7ff98b10271ea8db6940210 && export
      AWS_SECRET_ACCESS_KEY=eab9394d02b48a865634105b92c74751ec9a311c56884f7aead5d76476c6b576 && aw…)
  ⎿  Error: Exit code 254

     An error occurred (InvalidRegionName) when calling the ListObjectsV2 operation: The region name
     'ap-south-1' is not valid. Must be one of: wnam, enam, weur, eeur, apac, oc, auto

● Bash(export AWS_ACCESS_KEY_ID=c3c9190ae7ff98b10271ea8db6940210 && export
      AWS_SECRET_ACCESS_KEY=eab9394d02b48a865634105b92c74751ec9a311c56884f7aead5d76476c6b576 && aw…)
  ⎿  Cancelled: parallel tool call Bash(export AWS_ACCESS_KEY_ID=c3c9190ae7ff98b…) errored

● Bash(AWS_ACCESS_KEY_ID=c3c9190ae7ff98b10271ea8db6940210
      AWS_SECRET_ACCESS_KEY=eab9394d02b48a865634105b92c74751ec9a311c56884f7aead5d76476c6b576 aws s3 ls
      "s3://ptchec…)
  ⎿                             PRE ckpt-24000/
                                PRE ckpt-72000/

● Bash(AWS_ACCESS_KEY_ID=c3c9190ae7ff98b10271ea8db6940210
      AWS_SECRET_ACCESS_KEY=eab9394d02b48a865634105b92c74751ec9a311c56884f7aead5d76476c6b576 aws s3 ls
      "s3://ptchec…)
  ⎿                             PRE ckpt-10000/

● Let me get more details on these checkpoints.

● Bash(AWS_ACCESS_KEY_ID=c3c9190ae7ff98b10271ea8db6940210
      AWS_SECRET_ACCESS_KEY=eab9394d02b48a865634105b92c74751ec9a311c56884f7aead5d76476c6b576 aws s3 ls
      "s3://ptchec…)
  ⎿  2026-03-25 08:39:17       1566 qwen3-asr-1.7B/03-25-2026/ckpt-24000/added_tokens.json
     2026-03-25 08:39:17       5872 qwen3-asr-1.7B/03-25-2026/ckpt-24000/config.json
     2026-03-25 08:39:17        131 qwen3-asr-1.7B/03-25-2026/ckpt-24000/generation_config.json
     … +33 lines (ctrl+o to expand)

● Bash(AWS_ACCESS_KEY_ID=c3c9190ae7ff98b10271ea8db6940210
      AWS_SECRET_ACCESS_KEY=eab9394d02b48a865634105b92c74751ec9a311c56884f7aead5d76476c6b576 aws s3 ls
      "s3://ptchec…)
  ⎿  2026-03-25 08:27:23        613 gemma3n-E2B-asr/03-24-2026/ckpt-10000/chat_template.jinja
     2026-03-25 08:27:24       4565 gemma3n-E2B-asr/03-24-2026/ckpt-10000/config.json
     2026-03-25 08:27:23        209 gemma3n-E2B-asr/03-24-2026/ckpt-10000/generation_config.json
     … +14 lines (ctrl+o to expand)

● Here's the summary:

  Git Pull Results

  ┌─────────────────────────────────────────────────┬────────────────────────────────────────────────────┐
  │                      Repo                       │                       Status                       │
  ├─────────────────────────────────────────────────┼────────────────────────────────────────────────────┤
  │ maya-asr                                        │ Pulled 5 files (936 insertions, 230 deletions) -   │
  │ (maya-asr-hybrid-fastconformer-rnnt-stage1)     │ config, sampler, training script updates           │
  ├─────────────────────────────────────────────────┼────────────────────────────────────────────────────┤
  │ qwen3 (qwen3-asr-1.7b-phase2-sft)               │ Pulled 3 files (142 insertions, 38 deletions) -    │
  │                                                 │ SFT script and launch script updates               │
  ├─────────────────────────────────────────────────┼────────────────────────────────────────────────────┤
  │ gemma3n (gemma3n-E2B-asr-ft)                    │ Already up to date                                 │
  └─────────────────────────────────────────────────┴────────────────────────────────────────────────────┘

  R2 Checkpoints Available

  Qwen3 ASR (s3://ptcheckpoints/qwen3-asr-1.7B/03-25-2026/)

  - ckpt-24000 — uploaded ~08:39 today, model ~3.8GB, optimizer ~1.5GB
  - ckpt-72000 — uploaded ~18:23 today, model ~3.8GB, optimizer ~7.6GB (includes scheduler + trainer_state)

  Gemma3n E2B ASR (s3://ptcheckpoints/gemma3n-E2B-asr/03-24-2026/)

  - ckpt-10000 — uploaded ~08:27 today, model ~20.3GB, optimizer ~40.5GB (includes scheduler + trainer_state)

  Both repos have full checkpoints with model weights, optimizer state, tokenizer, RNG states (8 GPUs), and
  training args.